Using the following regression output, test the following hypotheses. Use a=0. 1: variable coefficient constant 4. 162 units 15. 509

Answers

Answer 1

As our calculated t-value of 3.032 is greater than the critical value of ±1.645, we can reject the null hypothesis at the 0.1 significance level and conclude that the coefficient for the variable is statistically significant and different from zero.

The hypotheses that we want to test are:

H0: The coefficient for the variable is equal to zero.

H1: The coefficient for the variable is not equal to zero.

Using the given output, we can see that the coefficient for the variable is 15.509, and the standard error of the coefficient is 5.123. The t-value for the coefficient is calculated by dividing the coefficient estimate by its standard error, so:

t = 15.509 / 5.123 = 3.032

To test the hypothesis, we can compare the calculated t-value with the critical value of the t-distribution with n-k-1 degrees of freedom (where n is the sample size and k is the number of independent variables), at a significance level of 0.1 and using a two-tailed test.

Since the sample size and number of independent variables are not provided, we cannot determine the degrees of freedom or the critical value directly. However, we can use a t-distribution calculator or look up the critical value from a t-distribution table. For example, with n=50 and k=2 (based on the given output), the critical value for a two-tailed test at a significance level of 0.1 is approximately ±1.645.

Since our calculated t-value of 3.032 is greater than the critical value of ±1.645, we can reject the null hypothesis at the 0.1 significance level and conclude that the coefficient for the variable is statistically significant and different from zero. In other words, there is evidence to suggest that the variable has a significant effect on the outcome being predicted by the regression model.

To learn more about null hypothesis

https://brainly.com/question/28920252

#SPJ4


Related Questions

Use a truth table to determine whether the following two statement forms are equivalent:(p∧q)∨∼(p∨q) and (p∨∼q)∧(∼p∨q)

Answers

To determine whether the two statement forms are equivalent, we need to create a truth table for each statement form and compare the results.

First, let's create a truth table for the statement form (p∧q)∨∼(p∨q):


 
   p
   q
   p∧q
   p∨q
   ∼(p∨q)
   (p∧q)∨∼(p∨q)
 
 
   T
   T
   T
   T
   F
   T
 
 
   T
   F
   F
   T
   F
   F
 
 
   F
   T
   F
   T
   F
   F
 
 
   F
   F
   F
   F
   T
   T
 

Next, let's create a truth table for the statement form (p∨∼q)∧(∼p∨q):


 
   p
   q
   ∼q
   ∼p
   p∨∼q
   ∼p∨q
   (p∨∼q)∧(∼p∨q)
 
 
   T
   T
   F
   F
   T
   T
   T
 
 
   T
   F
   T
   F
   T
   F
   F
 
 
   F
   T
   F
   T
   F
   T
   F
 
 
   F
   F
   T
   T
   T
   T
   T
 

Comparing the results of the two truth tables, we can see that the two statement forms are not equivalent. The statement form (p∧q)∨∼(p∨q) is true when both p and q are true or when both p and q are false. The statement form (p∨∼q)∧(∼p∨q) is true when both p and q are true or when both p and q are false, but it is also true when p is false and q is true. Therefore, the two statement forms are not equivalent.

Learn more about statement forms

brainly.com/question/13382093

#SPJ11

() Which expression is equivalent to (x^2/x^-4)^5​

Answers

The expression that is equivalent to [tex](\frac{x^2}{x^-4})^5[/tex] is x³⁰

How to determine the equivalent expression

From the question, we have the following parameters that can be used in our computation:

[tex](\frac{x^2}{x^-4})^5[/tex]

An equivalent expression is a different way of writing the same mathematical statement using equivalent mathematical operations or properties.

Evaluate the quotients using the law of indices

So, we have the following representation

(x⁶)⁵

Remove the bracket using the law of indices

So, we have the following representation

x³⁰

Hence, the solution to the expression is x³⁰

Read more about expression at

https://brainly.com/question/15775046

#SPJ1

Math part 2 question 5

Answers

The solution of the function f(h.g)(x) will be 6x³ -3x² + 5. The correct option is C.

What is an expression?

In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.

The given functions are,

h(x) = 3x +5

g(x) = 2x³ - x ²

The value of the function f(h.g)(x) will be calculated as,

f(h.g)(x) = 3 ( 2x³ - x² ) + 5

f(h.g)(x) = 6x³ - 3x² + 5

Therefore, the solution of the function f(h.g)(x) will be 6x³ -3x² + 5. The correct option is C.

To know more about an expression follow

https://brainly.com/question/24748644

#SPJ1

Repost
Simplify.
4x^3 - 12x^2
__________
4x^2 + 7x - 2
__________
2x^2 - 6x
__________
5x^2 + 11x + 2

Answers:
A. 2x(5x-1)
_____
4x-1
B. 2x(5x+1)
_____
4x-1
C. x(5x+1)
_____
4x-1
D. x(5x+1)
_____
2(4x-1)

Answers

67-322:8790 answer it’s correct

Answer:

the answer is B. 2x(5x+1)

#2:
2
10-8 F6 F4 F2
649
4x+3y s 24
5x+By z 40
4x+3y <24
5x+By > 40
SENT
2
-4
Which system of inequalities describes the graph?
-B
10
4x + 3y 2 24
5x+By s 40
4x + 3y - 24
5x+8y <40

Answers

The system of inequalities that describes the graph is given as follows:

4x + 3y ≥ 24.5x + 8y ≤ 40.

How to define the linear function?

The slope-intercept definition of a linear function is given as follows:

y = mx + b.

In which:

m is the slope, representing the rate of change.b is the intercept, representing the value of y when x = 0.

For the lower bound of the inequality, we have that:

The line has an intercept of 8, as when x = 0, y = 8.The line has a slope of -4/3, as when x increases by 6, y decays by 8.

Hence:

y ≥ -4/3x + 8

4x/3 + y ≥ 8

4x + 3y ≥ 24.

For the upper bound of the inequality, we have that:

The line has an intercept of 5, as when x = 0, y = 5.The line has a slope of -5/8, as when x increases by 8, y decays by 5.

Hence:

y ≤ -5x/8 + 5

5x/8 + y ≤ 5

5x + 8y ≤ 40.

More can be learned about linear functions at https://brainly.com/question/24808124

#SPJ1

help me solve this homework

Answers

The volume of the triangular prism is 42 in³.

What is a triangular prism?

In geometry, a triangular prism is a three-sided polyhedron with a triangle base, a translated copy, and three faces joining equal sides. A right triangular prism is oblique if its sides are not rectangular.

We know that

Volume of Prism (V) = Area of triangle * Height of Prism

Area of triangle = (Base * Height) / 2

Area of triangle = (4 * 3) / 2

Area of triangle = 12 / 2

Area of triangle = 6 in²

Using this, we get

⇒V = 6 * 7

⇒V = 42 in³

Hence, the volume of the triangular prism is 42 in³.

Learn more about triangular prism from the given link

https://brainly.com/question/29663752

#SPJ1

Since there are multiple questions so the question answered above is attached below

1.Solve the system of equations [8] 2x + 6y + 62 = 6 2x + 7y + z = 7 2x + 7y + 72 = 8 - using the inverse of the coefficient matrix.(Compute inverse by inversion algorithm)

Answers

The solution to the system of equations is:
x = -6.552
y = -1.655
z = 1.276

To solve the system of equations using the inverse of the coefficient matrix, we will first need to find the inverse of the coefficient matrix using the inversion algorithm. The coefficient matrix is:

A = [[2, 6, 6], [2, 7, 1], [2, 7, 7]]

To find the inverse of A, we will use the inversion algorithm:

1. Find the determinant of A:

|A| = 2(7*7 - 1*7) - 6(2*7 - 1*2) + 6(2*7 - 2*7) = 14 - 72 + 0 = -58

2. Find the matrix of minors:

M = [[(7*7 - 1*7), -(2*7 - 1*2), (2*7 - 2*7)], [-(6*7 - 6*1), (2*7 - 6*2), -(2*6 - 6*2)], [(6*1 - 7*6), -(2*1 - 7*2), (2*6 - 7*6)]]

M = [[42, -12, 0], [-36, 2, -12], [-36, 12, -30]]

3. Find the matrix of cofactors:

C = [[42, 12, 0], [36, 2, 12], [-36, -12, -30]]

4. Find the adjugate matrix:

adj(A) = [[42, 36, -36], [12, 2, -12], [0, 12, -30]]

5. Find the inverse of A:

A^-1 = (1/|A|)adj(A) = (1/-58)[[42, 36, -36], [12, 2, -12], [0, 12, -30]]

A^-1 = [[-0.724, -0.621, 0.621], [-0.207, -0.034, 0.207], [0, -0.207, 0.517]]

Now, we can use the inverse of the coefficient matrix to solve the system of equations. The system of equations can be written in matrix form as:

AX = B

Where A is the coefficient matrix, X is the matrix of unknowns, and B is the matrix of constants:

A = [[2, 6, 6], [2, 7, 1], [2, 7, 7]]
X = [[x], [y], [z]]
B = [[6], [7], [8]]

Multiplying both sides of the equation by the inverse of A, we get:

A^-1AX = A^-1B

IX = A^-1B

X = A^-1B

Substituting the values of A^-1 and B, we get:

X = [[-0.724, -0.621, 0.621], [-0.207, -0.034, 0.207], [0, -0.207, 0.517]] * [[6], [7], [8]]

X = [[-6.552], [-1.655], [1.276]]

Therefore, the solution to the system of equations is:

x = -6.552
y = -1.655
z = 1.276

Learn more about matrix

brainly.com/question/28180105

#SPJ11

Use synthetic division to find the quotient and remainder when -x^(4)+6x^(3)+7x^(2)+3 is divided by x-7

Answers

The quotient and remainder when -x⁴+6x³+7x²+3 is divided by x-7 is 12 and 73, respectively.

Using synthetic division, the quotient and remainder when -x⁴+6x³+7x²+3 is divided by x-7 is 12 and 73, respectively.


To solve this problem, start by writing out the synthetic division form, with the coefficients in the same order as the original problem:



  |-7 |6 7 3
 |1 -7
 |0 12
 |-73


Take the first coefficient of the divisor (-7) and multiply it by the first coefficient of the dividend (-1). The result is 7. Place this number at the top of the first column of the table.


Take the divisor’s first coefficient (-7) and add it to the dividend’s second coefficient (6). Place the result (–1) in the second column of the table.


Take the first coefficient of the divisor (-7) and multiply it by the second coefficient of the dividend (6). Place the result (-42) in the third column of the table.


Now add the first two numbers in the second column of the table (7 and -1). Place the result (6) in the fourth column.

The last number in the table (-73) is the remainder. The second number in the table (12) is the quotient.

To know more about synthetic division click on below link:

https://brainly.com/question/28824872#

#SPJ11

-2y=5x-6 in standard form

Answers

Answer: 5x + 2y = 6

Step-by-step explanation:

The standard form is Ax + By = C

Subtract 5x from each side:

- 5x - 2y = - 6

The first term in the standard form must be positive, so multiply by -1 to change the sign.

5x + 2y = 6

Hope this helps!

10 points if someone gets right

Sam believes that 1/2 % is equivalent to 50%. Is he correct? Why or why not?

Answers

Step-by-step explanation:

just ignore the % sign and answer :

is 1/2 equivalent to 50 ? yes or no ?

no, of course.

1/2 = 0.5

50 = 50

clearly they are different.

Sam is confused, because 50% = 1/2 = 0.5.

but 50% is NOT 1/2%

1/2% is half of 1%, which by itself is 1/50 of 50%.

1/2% = 1/50/2 of 50% = 1/100 of 50% =

= 0.01 × 0.5 = 0.005

This question has two parts. First, answer Part A. Then, answer Part B.
Part A
Select the graph that represents the system of equations.
y=−3x−13 y=2x+2

Answers

In answering the question above, the solution is As a result, (x,y) = is the system of equations' answer (-3,8).

What is equation?

A mathematical equation links two statements and utilises the equals sign (=) to indicate equality. In algebra, an equation is a mathematical assertion that proves the equality of two mathematical expressions. For instance, in the equation 3x + 5 = 14, the equal sign separates the numbers by a gap. A mathematical formula may be used to determine how the two sentences on either side of a letter relate to one another. The logo and the particular piece of software are usually identical. like, for instance, 2x - 4 = 2.

The equations in the system are:

[tex]y = -3x - 13 \sy = 2x + 2[/tex]

We may put the two equations equal to one another and get x to solve this system:

-3x - 13 = 2x + 2

3x added to both sides results in:

-13 = 5x + 2

By taking 2 away from both sides, we arrive at:

-15 = 5x

When we multiply both sides by 5, we get:

x = -3

We may use either of the original equations to calculate y now that we know x:

y = -3(-3) - 13 = 8

As a result, (x,y) = is the system of equations' answer (-3,8).

To know more about equation visit:

https://brainly.com/question/649785

#SPJ1

a car headlight reflector is cut by a plane along its axis. the section is a parabola having the light center at the focus. if the distance of focus from the vertex is 3/4cm and if the diameter of the reflector is 10 cm, find its depth.
A. 22/3
B. 25/3
C. 23/3
D. 27/3

Answers

The correct answer is B. 25/3.

We can use the equation of a parabola with a focus at (h, k) and a directrix at y = k + p to find the depth of the reflector. The equation is:
(y - k)² = 4p(x - h)

Since the focus is at the light center, we can set h = 0 and k = 0. The distance of the focus from the vertex is 3/4 cm, so p = 3/4. The diameter of the reflector is 10 cm, so the x-coordinate of the vertex is 5 cm. We can plug in these values to find the depth of the reflector:
(y - 0)² = 4(3/4)(x - 0)
y² = 3x
y = √(3x)

When x = 5, we can find the depth of the reflector:

y = √(3*5)
y = √15
y = 3.87 cm
The depth of the reflector is 3.87 cm, or 25/3 cm.

To know more about parabola  refer here:

https://brainly.com/question/21685473

#SPJ11

When a car headlight reflector is cut by a plane along its axis, the section obtained is a parabola. This parabola is such that the light center is at the focus. The distance of focus from the vertex is 3/4 cm and the diameter of the reflector is 10 cm. The depth of the reflector comes out to be CD = VC - VF = (10/3) - (3/4) = 27/4 cm

The vertex of the parabola is the midpoint of the diameter of the reflector. Let V be the vertex of the parabola and let F be the focus. The distance between V and F is given as 3/4 cm.The reflector is such that light rays from the source (headlamp) placed at the focus of the parabola are reflected by the parabola in such a way that the rays are parallel to the axis of the parabola. This is known as the reflecting property of the parabola.

This is equal to CD.Let P be the point on the parabola, as shown in the diagram below, such that PF is equal to the diameter of the reflector. Then, by the definition of the parabola, the distance from P to the vertex C is the same as the distance from the focus F to P, i.e., PF = PC. Since PF is equal to the diameter of the reflector, it is given that PF = 10 cm.Therefore, PC = 10 cm. It is also given that VF = 3/4 cm. Therefore, VC = PC - PV = 10 - 20/3 = 10/3 cm.

Hence, the depth of the reflector is CD = VC - VF = (10/3) - (3/4) = 27/4 cm. Therefore, the depth of the reflector is 27/4 cm, which is the correct option among the given choices.

Know more about parabola here:

https://brainly.com/question/31142122

#SPJ11

8 + (9-1) ÷ 4 =? 10 or 4

Answers

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Compute the inverseA−1of the following matrices (a)A=[11​1−4​](b)A=​211​312​−13−1​​Verify thatA−1A=IandAA−1=I

Answers

We have verified that A^-1A = I and AA^-1 = I for both matrices.

To compute the inverse of a matrix, we can use the formula: A^-1 = 1/det(A) * adj(A), where det(A) is the determinant of the matrix A and adj(A) is the adjoint of the matrix A.

(a) A = [1 1; 1 -4]

det(A) = (1*-4) - (1*1) = -4 - 1 = -5

adj(A) = [-4 -1; -1 1]

A^-1 = 1/-5 * [-4 -1; -1 1] = [4/5 1/5; 1/5 -1/5]

(b) A = [2 1 1; 3 1 2; -1 3 -1]

det(A) = (2*(1*-1) - 1*(2*3) + 1*(-1*3)) - (1*(1*-1) - 1*(2*-1) + 1*(3*3)) = -6 - 3 - 3 - 9 = -21

adj(A) = [-1 -2 7; 5 1 -8; 2 5 -7]

A^-1 = 1/-21 * [-1 -2 7; 5 1 -8; 2 5 -7] = [1/21 2/21 -7/21; -5/21 -1/21 8/21; -2/21 -5/21 7/21]

To verify that A^-1A = I and AA^-1 = I, we can simply multiply the matrices and check if the result is the identity matrix.

For (a):

A^-1A = [4/5 1/5; 1/5 -1/5] * [1 1; 1 -4] = [1 0; 0 1] = I

AA^-1 = [1 1; 1 -4] * [4/5 1/5; 1/5 -1/5] = [1 0; 0 1] = I

For (b):

A^-1A = [1/21 2/21 -7/21; -5/21 -1/21 8/21; -2/21 -5/21 7/21] * [2 1 1; 3 1 2; -1 3 -1] = [1 0 0; 0 1 0; 0 0 1] = I

AA^-1 = [2 1 1; 3 1 2; -1 3 -1] * [1/21 2/21 -7/21; -5/21 -1/21 8/21; -2/21 -5/21 7/21] = [1 0 0; 0 1 0; 0 0 1] = I

Therefore, we have verified that A^-1A = I and AA^-1 = I for both matrices.

Learn more about Matrices

brainly.com/question/11367104

#SPJ11

On your last two math tests, you had scores of 81 and 94. What must you score on the next test to average exactly a 90 on all three tests?

Answers

To average a 90 on all three tests, you must score a 95 on the next test.

To find the score you need to average exactly a 90 on all three tests, you can use the formula for the mean (average) of a set of numbers:

Mean = (Sum of all numbers) / (Total number of numbers)

Let's call the score you need on the next test x. We can plug in the known values and solve for x:

90 = (81 + 94 + x) / 3

Multiply both sides by 3 to get rid of the fraction:

270 = 81 + 94 + x

Subtract 81 and 94 from both sides to isolate x:

95 = x

So, you need to score a 95 on the next test to average exactly a 90 on all three tests.

You can learn more about average at

https://brainly.com/question/20118982

#SPJ11

Julia's dog Toby had 5 puppies. Each pup eats 0. 13 pounds of dog food every day. How much dog food do puppies eat in 1 day?

Answers

Answer:

0.65

Step-by-step explanation:

0.13 * 5 = 0.65

Question 1: a. Suppose that f(x)=2 x^{2}-5 x-8, g(x)=9-x and ( k(x)=2 x+4 ) Perform the following combination functions, then simplify your results as much as you can: (I Mark) 1. ( 4(f+k){x}

Answers

1. 4(f+k)(x)=4(2x^2 - 5x - 8 + 2x + 4) = 8x^2 - 20x - 32.

Learn more about functions

brainly.com/question/14418346

#SPJ11

what is 1/2 shaded in 8 pieces​

Answers

The answer should be 4 because it’s the half of 8 .

Answer:

4

Step-by-step explanation:


In 2017, were an estimated 8,888,543 people living in New Jersey and there was a total of 74,846 deaths of NJ residents reported. Of those deaths, 1,908 were due to diabetes.
a. Calculate the crude mortality rate in NJ in 2017
b. Calculate the cause-specific mortality rate due to diabetes in NJ in 2017
c. What additional variable (piece of information) would I need to calculate the case-fatality percent of diabetes?

Answers

Answer: a. To calculate the crude mortality rate in NJ in 2017, we need to divide the total number of deaths (74,846) by the total population (8,888,543) and then multiply by 1,000 to express the result per 1,000 population.

Crude Mortality Rate = (Total deaths / Total population) x 1,000

Crude Mortality Rate = (74,846 / 8,888,543) x 1,000

Crude Mortality Rate = 8.42 per 1,000 population

b. To calculate the cause-specific mortality rate due to diabetes in NJ in 2017, we need to divide the number of deaths due to diabetes (1,908) by the total population and then multiply by 1,000 to express the result per 1,000 population.

Cause-specific Mortality Rate due to Diabetes = (Deaths due to diabetes / Total population) x 1,000

Cause-specific Mortality Rate due to Diabetes = (1,908 / 8,888,543) x 1,000

Cause-specific Mortality Rate due to Diabetes = 0.21 per 1,000 population

c. To calculate the case-fatality percent of diabetes, we would need to know the number of people diagnosed with diabetes who died during the same time period. Specifically, the case-fatality percent of diabetes would be calculated by dividing the number of people with diabetes who died (numerator) by the total number of people with diabetes (denominator) and then multiplying the result by 100 to express the percentage. Therefore, the additional variable required is the number of people with diabetes in the population.

Step-by-step explanation:

Determine if the triangles are similar.

A. Yes, SSS
B. Yes, SAS
C. Yes, AA
D. No, not similar

Answers

The triangles are similar by SSS and the scale factor is 0.625

What are similar triangles?

If two triangles' corresponding angles are congruent and their corresponding sides are proportional, they are said to be similar triangles. In other words, similar triangles have the same shape but may or may not be the same size. The triangles are congruent if their corresponding sides are also of identical length.

Corresponding sides of similar triangles are in the same ratio. The ratio of area of similar triangles is the same as the ratio of the square of any pair of their corresponding sides

Given data ,

Let the first triangle be represented as ΔJKT

Let the second triangle be represented as ΔKLS

Now , the measure of side JT = 20

The measure of side JK = 14

The measure of side KS = 32

The measure of side KL = 22.4

The corresponding sides of similar triangles are in the same ratio

So , on simplifying , we get

JT / KS = JK / KL

20 / 32 = 14 / 22.4

On further simplification , we get

0.625 = 0.625

Hence , the triangles are similar

To learn more about similar triangles click :

https://brainly.com/question/29378183

#SPJ1

What is the value of 6 = 3 × 2³? 2/03/0 16 64​

Answers

The value of 6 = 3 × 2³ is 24 by using PEMDAS operations, the correct option is (d).

To understand why, we can simplify the equation using the order of operations, which is PEMDAS (parentheses, exponents, multiplication/division, addition/subtraction). To evaluate the expression 3 x 2³, we first need to simplify the exponent, which means multiplying 2 by itself three times:

2³ = 2 x 2 x 2

2³ = 8

Now we can substitute the value of 2³ into the original expression:

3 x 2³ = 3 x 8

3 x 2³ = 24

However, the value of 6 = 3 x 2³, is equal to 24 the correct option is (d).

To learn more about PEMDAS follow the link: brainly.com/question/29172059

#SPJ4

The complete question is:

What is the value of 6 = 3 × 2³?

a. 16

b. 64

c. 42

d. 24

The Kangaroo Lodge of Madison County has 10 members (A, B, C, D, E, F, G, H, I, and J). The club has five working committees: the Rules Committee (A, C, D, E, I, and I), the Public Relations Committee (B, C, D, H, I, and J), the Guest Speaker Committee (A, D, E, F, and H), the New Year's Eve Party Committee (D, F, G, H, and I), and the Fund Raising Committee (B, D, F, H, and J). (a) Suppose we are interested in knowing which pairs of members are on the same committee. Draw a graph that models this problem. (Hint: Let the vertices of the graph represent the members.) (b) Suppose we are interested in knowing which commit- tees have members in common. Draw a graph that models this problem. (Hint: Let the vertices of the graph represent the committees.)

Answers

If your saying hint, then shouldn’t you already know it? But whatever it’s A

Does this graph show a function? Explain how you know.
O A. Yes; there are no y-values that have more than one xvalue.
O B. No; there are y-values that have more than one x-value.
O C. Yes; the graph passes the vertical line test.
O D. No; the graph fails the vertical line test.

Answers

Answer:

D

Step-by-step explanation:

The line touches the graph at 2 different points so it doesnt pass the verticle line test

Lucky Duck

What is the probability you will choose each duck described below?
Write the answer as a fraction in lowest terms and place it in the appropriate
box (certain, likely, unlikely, impossible).
The ducks are
numbered from one
through 12!

Answers

Lucky duck probabilities include:

4. Impossible, 0/12.5. Likely, 1/6.6. Certain, 1.7. Likely, 1/12.8. Impossible, 0/129. Likely, 1/1210. Certain, 1/2.11. Likely, 1/2.12. Impossible, 0/12.13. Likely, 2/3.14. Certain, 1.15. Likely, 7/12.16. Likely, 1/3.

How to determine probability?

A duck with a number:

Every duck has a number, so the probability of choosing a duck with a number is certain (1/1 or 100%).

A duck with a number greater than 10:

is 2/12 or 1/6, since there are 2 ducks with numbers greater than 10 out of a total of 12 ducks.

Duck number 4:

There is only one duck with the number 4, so the probability of choosing this duck is 1/12.

A duck with sunglasses:

There are no ducks with sunglasses so the probability is impossible.

A duck with a hat:

We don't know how many ducks wear hats, so we cannot determine the probability.

An even-numbered duck:

There are 6 even-numbered ducks (2, 4, 6, 8, 10, 12) out of 12 ducks in total, so the probability of choosing an even-numbered duck is 6/12, which simplifies to 1/2.

A duck with a number less than 7:

There are 6 ducks with a number less than 7 (1, 2, 3, 4, 5, 6) out of 12 ducks in total, so the probability of choosing a duck with a number less than 7 is 6/12, which simplifies to 1/2.

A duck with a mustache:

There are no ducks with mustaches, so the probability of getting a duck with a mustache is impossible, 0.

A duck with a bow tie:

Ducks with bowties are 8, so the probability of choosing a duck with bowtie is likely 8/12, 2/3

A duck with a number lower than 25:

All ducks have a number lower than 25, so the probability of choosing a duck with a number lower than 25 is certain (1).

A duck with a number greater than 5:

There are 7 ducks with a number greater than 5 (6, 7, 8, 9, 10, 11, 12) out of 12 ducks in total, so the probability of choosing a duck with a number greater than 5 is 7/12.

A duck with number that's a multiple of 3:

There are 4 ducks with a number that's a multiple of 3 (3, 6, 9, 12) out of 12 ducks in total, so the probability of choosing a duck with a number that's a multiple of 3 is 4/12, which simplifies to 1/3.

Learn more on probability here: https://brainly.com/question/13983379

#SPJ1

When Sarah runs the 400 meter dash, her finishing times are normally distributed with a mean of 63 seconds and a standard deviation of 1. 5 seconds. Using the empirical rule, what percentage of races will her finishing time be between 61. 5 and 64. 5 seconds?

Answers

Based on the given mean and standard deviation of Sarah's finishing times, we can estimate that approximately 68% of her races will have finishing times between 61.5 and 64.5 seconds.

The empirical rule, also known as the 68-95-99.7 rule, is a useful tool for estimating the percentage of data that falls within a certain number of standard deviations from the mean in a normal distribution.

In this case, Sarah's finishing times in the 400-meter dash are normally distributed with a mean of 63 seconds and a standard deviation of 1.5 seconds. To use the empirical rule, we need to first calculate the z-scores for the lower and upper bounds of the range we're interested in.

For the lower bound of 61.5 seconds:

z = (61.5 - 63) / 1.5 = -1

For the upper bound of 64.5 seconds:

z = (64.5 - 63) / 1.5 = 1

These z-scores tell us how many standard deviations are away from the mean each time. Using the empirical rule, we know that approximately 68% of the data falls within one standard deviation of the mean, 95% falls within two standard deviations, and 99.7% falls within three standard deviations.

Since the range we're interested in is within one standard deviation of the mean, we can estimate that approximately 68% of Sarah's finishing times will be between 61.5 and 64.5 seconds.

To learn more about standard deviation

https://brainly.com/question/23907081

#SPJ4

45. SAT/ACT Practice Triangle QRS has sides of lengths 14, 19, and t, where t is the length of the longest side. If t is the cube of an integer, what is the perimeter of the triangle? A 41 B 58 C 60 D

Answers

The perimeter of triangle QRS 60. Therefore, the correct answer is C: 60.


The perimeter of a triangle is the sum of the lengths of its sides. Therefore, the perimeter of triangle QRS is 14 + 19 + t.


Since t is the cube of an integer, we can write t as x³, where x is an integer. The perimeter of the triangle is then 14 + 19 + x³.

We also know that t is the longest side of the triangle, so it must be greater than both 14 and 19. This means that x³ must be greater than 19, so x must be greater than or equal to 3.

If x is 3, then t is 3³, or 27. The perimeter of the triangle is then 14 + 19 + 27, or 60.

Therefore, the correct answer is C: 60.

You can learn more about perimeter of triangle at

https://brainly.com/question/24487269

#SPJ11

PLSSSS HELP IF YOU TURLY KNOW THISSSS

Answers

Answer:

x = 5

Step-by-step explanation:

 5x - 7 = 3x + 3

- 3x        -3x

2x - 7 =         3

      +7           +7

 2x =              10

Divide 2 from both sides

x = 5

Answer: 10

Step-by-step explanation:

2x - 7 = 3

add 7 to both sides = 2x = 10

now to solve:

once u have 2x = 10

divide both sides by 2

x=5

24kg in the ratio 3 : 5 ?????

Answers

Answer: Your welcome!

Step-by-step explanation:

The ratio of 24kg is 3:5, which means 3 parts of 24kg is 3 times the 5th part of 24kg.

Therefore, 3 parts of the 24kg is 18kg and 5 parts of the 24kg is 6kg.

Answer: 24 kg in the 3:4 as 9 kg for the furst part and 15 kg for the secord.

Vocabulary Matching
1. apathy
2. competent
3. expectations
4. value
positive or negative
fear of failure or success
Ahmein doesn't care if he does well
or not.
Javier knows he is able to build a
birdhouse.

Answers

The correct matches for the vocabulary would be :

Apathy - Ahmein is unconcerned with his academic performance.Competent - Javier is aware that he can construct a birdhouse.Expectations - Fear of failure or success Value - Positive or negative

How to explain the vocabulary ?

Apathy is a lack of interest or passion for anything. The line "Ahmein doesn't care if he does well or not" describes apathy since Ahmein is apathetic about whether he succeeds or fails.

Being competent is having the knowledge and skills required to complete a task successfully which describes Javier as he is aware that he can construct a birdhouse.

Expectations are convictions or presumptions regarding future events. Value is a term used to describe something's importance or worth.

Find out more on vocabulary at https://brainly.com/question/1587636

#SPJ1

Answer:

1. apathy = Trudy doesn't care about doing well in school.

2. competent = Javier knows he is able to build a birdhouse.

3. expectations = fear of failure or success

4. autonomy = Alfonzo likes to make choices on his own.

5. stress = Quincy feels anxious and distressed about a test.

Can someone answer this

Answers

Answer:

16

Step-by-step explanation:

g(x)=-5x+1

g(-3)

x=-3

-5(-3) +1

15+1

16

Answer:

See below.

Step-by-step explanation:

For this problem, we are asked to find the value of g(-3).

We are given a Linear Function.

What is a Linear Function?

A Linear Function is a Polynomial Function that is commonly graphed. This function most of the time will simply be represented as a straight line when graphed.

For this problem;

[tex]g(x)=-5x+1 \ Find \ g(-3).[/tex]

We simply need to substitute -3 in for x.

[tex]g(-3)=-5(-3)+1[/tex]

Simplify:

[tex]g(-3)=16.[/tex]

Our final answer is g(-3) = 16.

Other Questions
Suppose you play a game where you roll a fair six-sided die. If the die lands on an even number, you win $2, and if the die lands on an odd number, you lose $1. What is your expected value for one round of this game?Show Work and Submit Full Answer Encuentre el valor de la expresin si a =2, b= -3 y c=-1 ; ab2 -c3 All around me, death was moving in, silently, without violence. Itwould seize upon some sleeping being, enter into him, and consume him bit bybit. What literary technique is this to describe death as if it were a human being? Please note that for 1 pound of bananas the cost is$0.63/lb(according to the US Bureau of Labor Statistics.) In 1939 , the cost of bananas was14%lower. Pam buys 5 pounds of bananas for children at the camp she works for. What would these bananas have cost in 1939? URGENT!!!A partnership requires a $830,000 investment today, and will generate a one-time cash flow of $961,566 after one year. The business will be financed with 35% equity and 65% debt. If the firm can borrow at 8%, what is the pre-tax WACC?a.) 17.06%b.) 15.85%c.) 15.25%d.) 16.45%e.) 14.65% How to express a two logarithm into a single logarithm Pls help i need it today Plsneed help in ABC when flying on an air plane the weight limit for carry on luggage is 30 pounds there are approximately 453.6 grams in 1 pound which measurement is closet to the weight of the checked luggage in grams Ina makes cakes in a pan shaped like a rectangular prism. The base of the pan is an 8-inch by 12-inch rectangle, and the volume of the pan is 288 cubic inches. Find the surface area of a cheesecake baked in this pan Please help with thus question Find the percent decrease from 498 to 0 You have cultured a novel bacterial isolate from a mouse fecal pellet, grown in an anaerobic chamber. When you apply some biomass of the isolate to hydrogen peroxide on a slide, the sample bubbles. What can you conclude about the metabolism of the isolate? What inferences can you make about the terminal electron acceptor(s) the isolate uses? Look at the positions of calcium, beryllium, and magnesium on the periodic table. Based on their locations, predict how many valence electrons these elements have and predict what the reactivity of these elements will generally be. Use the commutative or associative property to simplify the expression. (1)/(13)(13y) what is the ratio of 2:35 Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The counts are displayed in the table below. He has a total of 1,500 songs on his player. Josiah predicted the number of rock songs on his MP3 player to be 300 songs. Which statements about his solution are true? Select three choices. Josiahs Music Sample 1 Sample 2 R & B 5 R & B 4 Pop 4 Pop 3 Classical 3 Classical 5 Jazz 2 Jazz 4 Rock 6 Rock 4 Josiahs work: StartFraction 10 over 20 EndFraction = StartFraction x over 1,500 EndFraction. StartFraction 10 times 30 over 20 times 30 EndFraction = StartFraction x over 1,500 EndFraction. 300 = x. He should have found the average of the number of rock songs by averaging 4 and 6 to get 5. He did not multiply the numerator and denominator by the correct number to equal 1,500. His answer will be one-half of what he got because he did not divide 10 by 2 when setting up the proportion. He can only solve the proportion by multiplying the numerator and denominator by a common multiple. He should have multiplied the numerator and denominator by 75, not 30, because 20 times 75 = 1,500. The surface area of a rectangular prism is 250 cm 2. If its height is 10 centimeters, and its width is 5 centimeters, what is its volume? Kathleen begins working and at age 32she invests $6000.0 into a retirement account that pays an APR of 6.4% compounded monthly. She expects to retire at age 65. What will be the size of Kathleens total interest when she retires? True or False: Having emotional flare ups, showing our real emotions by beingconfrontational, and resisting seeing other's views shows a lack of emotionalintelligence.O TrueO False 1. Peggy richey operates peggy's pizza place in southern california. She has maintained a sales history from january through june and wants to compare this year's sales with last year's sales. Calculate her sales variances and percentage variances for the first 6 months of the year