Answer:
O don't know
Step-by-step explanation:
I'm just doing this because i need to i don't really know and I'm litterraly confused?
Use the table of random numbers to simulate the situation.
An amateur golfer hits the ball 48% of the time he attempts. Estimate the probability that he will hit at least 6 times in his next 10 attempts.
The estimate of the probability that he will hit at least 6 times in his next 10 attempts is given as follows:
80%.
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.
An amateur golfer hits the ball 48% of the time he attempts, hence we round the probability to 50%, and have that the numbers are given as follows:
1 to 5 -> hits.6 to 10 -> does not hit.From the table, we have 20 sets of 10 attempts, and in 16 of them he hit at least 6 attempts, hence the probability is given as follows:
16/20 = 0.8 = 80%.
More can be learned about probability at https://brainly.com/question/24756209
#SPJ1
19. The co-ordinates (α, ß) of a moving point are given by,
(iv)
α = 1/2a(t+1/t), β = 1/2a(t-1/t), where a is a constant;
in each case, obtain the relation between α and β, and hence write down the locus of the point as t varies.
Answer: To obtain the relation between α and β, we can eliminate t from the given equations.
(iv)
α = 1/2a(t+1/t)
β = 1/2a(t-1/t)
We can multiply these two equations to eliminate t^2:
αβ = (1/2a(t+1/t))(1/2a(t-1/t))
αβ = (1/4a^2)(t^2 - 1/t^2)
Multiplying both sides by 4a^2 gives:
4a^2αβ = t^2 - 1/t^2
Adding 1/t^2 to both sides gives:
4a^2αβ + 1/t^2 = t^2 + 1/t^2
Multiplying both sides by t^2 gives:
4a^2αβt^2 + 1 = t^4 + 1
Rearranging and simplifying gives the relation between α and β:
4a^2αβ = t^4 - 4a^2t^2 + 1
Now we can write the locus of the point as t varies:
4a^2αβ = t^4 - 4a^2t^2 + 1
This is a fourth degree equation in t, which represents a curve in the (α, β) plane. However, we can simplify it by noting that t^2 is always non-negative. Therefore, we can treat 4a^2t^2 as a constant and write:
4a^2αβ = (t^2 - 2a^2)^2 + 1 - 4a^4
This is the equation of a conic section called a hyperbola. Its center is at (0,0), its asymptotes are the lines α = ±β, and its foci are at (a√2,0) and (-a√2,0).
Step-by-step explanation:
Number of sodas sold:
Number of hot dogs sold:
35
Check
✓ 36
At a basketball game, a vender sold a combined total of 135 sodas and hot dogs. The number of hot dogs sold was 31 less than the number of sodas sold. Find
the number of sodas sold and the number of hot dogs sold.
0
✓ 37
✓38
Save For Later
Submit Assignment
©2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility
US
The number of sodas sold is 83 and the number of hot dogs sold is 52.
What is Algebraic expression ?
Algebraic expression can be defined as combination of variables and constants.
Let's call the number of sodas sold "x".
According to the problem, the number of hot dogs sold is 31 less than the number of sodas sold, so we can write the number of hot dogs sold as "x - 31".
We also know that the combined total of sodas and hot dogs sold is 135, so we can write an equation:
x + (x - 31) = 135
Simplifying this equation:
2x - 31 = 135
Adding 31 to both sides:
2x = 166
Dividing both sides by 2:
x = 83
So the number of sodas sold is 83.
To find the number of hot dogs sold, we can use the equation we came up with earlier:
x - 31 = 83 - 31 = 52
So the number of hot dogs sold is 52.
Therefore, the number of sodas sold is 83 and the number of hot dogs sold is 52.
To learn more about Algebraic expression from given link.
brainly.com/question/28884894
#SPJ1
Solve the compound linear inequality gr to the nearest tenth whenever appropria 1.4<=9.2-0.8x<=6.9
The solution to the compound linear inequality 1.4 ≤ 9.2 - 0.8x ≤ 6.9 are the values of x in the interval [2.9, 9.8].
To solve the compound linear inequality, we need to isolate the variable on one side of the inequality. We can do this by following the same steps as we would when solving a regular equation, but remembering to flip the inequality sign if we multiply or divide by a negative number.
1.4 ≤ 9.2 - 0.8x ≤ 6.9
First, we'll subtract 9.2 from all sides of the inequality:
-7.8 ≤ -0.8x ≤ -2.3
Next, we'll divide all sides by -0.8 to isolate the variable. Remember to flip the inequality signs since we're dividing by a negative number:
9.75 ≥ x ≥ 2.875
Finally, we'll write the solution to the nearest tenth in interval notation:
[2.9, 9.8]
So, the solution to the compound linear inequality are all values of x, which is greater than or equal to 2.9 but less than or equal to 9.8, or x is in the interval [2.9, 9.8].
Learn more about compound linear inequality here: https://brainly.com/question/29195276.
#SPJ11
Please do the foll calculation. When improper, rewrite number or integel 2.2+(3)/(5)
The final answer is 3
The calculation you are looking to solve is 2.2 + (3)/(5). To solve this, we first need to convert the improper number 2.2 to a fraction. We can do this by multiplying the whole number by the denominator of the fraction and then adding the numerator. In this case, we would multiply 2 by 5 and then add 2, giving us 12/5. Now, we can add this fraction to the other fraction:
12/5 + 3/5 = 15/5
Next, we can simplify the fraction by dividing both the numerator and denominator by the greatest common factor. In this case, the greatest common factor is 5, so we can divide both the numerator and denominator by 5:
15/5 = 3
Therefore, the final answer is 3.
In summary, 2.2 + (3)/(5) = 3.
Learn more about Improper
brainly.com/question/17724027
#SPJ11
Select the correct answer from each drop-down menu.
Determine how the figure helps to verify the triangle inequality theorem.
*
The two sides with lengths of 7 and 5 will (meet at a third vertex, only meet when they lie on the third side, never meet) ,which shows that the (sum, difference) of the lengths of the two sides of a triangle must be (less than, greater than, equal to)
the length of the third side.
The two sides with lengths of 7 and 5 will never meet, which shows that the sum of the lengths of the two sides of a triangle must be equal to the length of the third side.
What is the triangle inequality theorem?In Euclidean geometry, the Triangle Inequality Theorem states that the sum of any two sides of a triangle must be greater than or equal (≥) to the third side of the triangle.
Mathematically, the Triangle Inequality Theorem is represented by this mathematical expression:
b - c < n < b + c
Where:
n, b, and c represent the side lengths of this triangle.
b - c < n < b + c
7 - 5 < n < 7 + 5
2 < n < 12
Read more on Triangle Inequality Theorem here: brainly.com/question/26037134
#SPJ1
The captain of a ship at sea sights a lighthouse which is 160 feet tall.
The captain measures the angle of elevation to the top of the lighthouse to be 24.
How far is the ship from the base of the lighthouse?
The distance between the ship and the base of the is approximately 359.32 feet.
The distance between the ship and the base of the lighthouse can be found using the tangent of the angle of elevation.
The tangent of an angle in a right triangle is equal to the opposite side divided by the adjacent side. In this case, the opposite side is the height of the lighthouse (160 feet) and the adjacent side is the distance between the ship and the base of the lighthouse (x).
So, we can set up the equation:
tan(24) = 160/x
To solve for x, we can cross multiply and then divide:
x * tan(24) = 160
x = 160/tan(24)
Using a calculator, we can find that tan(24) is approximately 0.4452.
So, x = 160/0.4452
x = 359.32 feet
Therefore, the distance between the ship and the base of the lighthouse is approximately 359.32 feet.
Learn more about lighthouse
brainly.com/question/24996127
#SPJ11
confusion. help a pal out pls
The correct equation is;
p = 4t + 1
What is the equation of a line?The equation of a line is a mathematical expression that describes the relationship between the x and y coordinates of the points on the line. In general, the equation of a line can be written in slope-intercept form, which is y = mx + b, where m is the slope of the line and b is the y-intercept (the point at which the line crosses the y-axis).
We can get the slope of the graph from;
m = y2 - y1/x2 =x2 - x1
m = 1 - 0/0.25 - 0
m = 4
Since the y intercept is at y = 1 then we have;
p = 4t + 1
Learn more about equation of the line:https://brainly.com/question/21511618
#SPJ1
1/6 times a number is the same as 8.
Answer:
48
Step-by-step explanation:
We know
1/6 times a number is the same as 8. Let's x be the unknown number we have the equation
1/6x = 8
8 divided by 1/6
8 ÷ 1/6 = 8 × 6 = 48
So, the answer is 48
Jonah has read 1/4 of his mystery book. He has 36 pages. How many pages are in the mystery book
Assume 12% of a population of credit applications are fraudulent. (i.e each loan has a 12% probability of being fraudulent.)
Based on a random sample of 25 applications find the probability the number of fraudulent applications in the sample is
Equal to 0 [ Select ] Equal to 3 [ Select ] Equal to 3 or less [ Select ] Equal to 5 or more [ Select ] More than 3 [ Select ]
The probability of fraudulent applications are:
Equal to 0 [0.0410] Equal to 3 [0.2387] Equal to 3 or less [0.4088] Equal to 5 or more [0.1734] More than 3 [0.5912]How to determine the probability of fraudulent applicationsThe given parameters are
n = 25
p = 0.12
The individual probability can be calculated as
P(x) = C(n, x) * p^x * (1 - p)^(n - x)
So, we have
Probability the number of fraudulent applications in the sample is 0
P(0) = C(25, 0) * 0.12^0 * (1 - 0.12)^(25 - 0)
P(0) = 0.0410
Probability the number of fraudulent applications in the sample is 3
P(3) = C(25, 3) * 0.12^3 * (1 - 0.12)^(25 - 3)
P(3) = 0.2387
Probability the number of fraudulent applications in the sample is 3 or less
P(x ≤ 3) = P(0) + ... P(3)
Using the formula above, we have
P(x ≤ 3) = 0.4088
Probability the number of fraudulent applications in the sample is 5 or more
P(x ≥ 5) = P(5) + ... P(25)
Using the formula above, we have
P(x ≥ 5) = 0.1734
Probability the number of fraudulent applications in the sample is more than 3
P(x > 3) = 1 - P(x ≤ 3)
By substitution, we have
P(x > 3) = 1 - 0.4088
P(x > 3) = 0.5912
Read mroe about probability at
https://brainly.com/question/251701
#SPJ1
Determine if the relation defines y as a function of x. y 4+ 3+ 3 2 . 1 2 1+ 2+ -3+ 4+ Yes, this relation defines y as a function of x. Х 5 No, this relation does not define y as a function of x.
No, this relation does not define y as a function of x.
A function is a relation in which each input (x-value) is paired with exactly one output (y-value). In this relation, the x-value of 2 is paired with two different y-values (3 and -3), which violates the definition of a function.
Therefore, this relation does not define y as a function of x.
To know more about functions, refer here:
https://brainly.com/question/12431044#
#SPJ11
quired
1) Coordinate point B is at (4,3). What will the coordinates be for B' after a
translation of (x-2y+3)?
OB' (5,4)
OB' (2,6)
OB' (6,2)
OB' (-2,3)
The coordinates after the translation are (2, 6).
Which will be the coordinates after the translation?Here we start with the point (4, 3) and we want to apply the translation defined by (x - 2, y + 3)
This would be a translation of 2 units to the left and 3 units up, using a "coordinate-axis" notation.
So we just need to subtract 2 from the x-value and add 3 to the y-value, we will get the new coordinates:
(4 - 2, 3 + 3) = (2, 6)
These are the coordinates of point B after the translation, the correct option is the second one.
Learn more about translations at:
https://brainly.com/question/24850937
#SPJ1
Answer:
OB' (2,
Step-by-step explanation:
take your first point (B) (4,3) and plug it into the x and y in (x-2, y+3) so you get (4-2, 3+3) which will give you (2,
would appreciate fast answer :)
a. angle 2 and angle 1, angle 2 and angle 3 are linear pairs. b. angle 9 and angle 8, angle 9 and angle 5 are linear pairs. c. angle 4 and angle 2 form vertical angles.
What are linear pairs?A linear pair of angles in geometry is a pair of neighbouring angles created by the intersection of two lines. When two angles share a vertex and an arm but do not overlap, they are said to be adjacent angles. Due to their formation on a straight line, the linear pair of angles are always complementary. Thus, the total of two angles in a pair of lines is always 180 degrees.
a. angle 2 and angle 1, angle 2 and angle 3 are linear pairs.
b. angle 9 and angle 8, angle 9 and angle 5 are linear pairs.
c. angle 4 and angle 2 form vertical angles.
d. angle 8 and angle 5 form vertical angles.
e. The rays that form angle 7 and angle 9 do not for, opposite rays.
Learn more about linear pair here:
https://brainly.com/question/17525542
#SPJ1
Which measurements could represent the side lengths in feet of a right triangle?
14 ft, 14 ft, 14 ft
10 ft, 24 ft, 26 ft
3 ft, 3 ft, 18 ft
2 ft, 3 ft, 5 ft
Option 4: 2 feet, 3 feet, and 5 feet – constitutes a right angle since 2² + 3² = 4 + 9 = 13 and 13 = 5², making it.
What is a Class 7 triangle?A triangle is a geometry with three vertices and three sides. The internal angle of the triangle, which really is 180 degrees, is built. The inner triangle angles are implied to sum to 180 degrees. It has the fewest sides of any polygon.
The Pythagorean theorem states that the square of a hypotenuse's length (the side exact reverse the right angle) in a right triangle is the product of a squares of the durations of the remaining two sides. Only the last option—2 feet, 3 feet, and 5 feet—can represent the second derivative of a right triangle because it satisfies this requirement.
Let's check each option:
Option 1: 14 feet, 14 feet, 14 feet - As all three are equal, this doesn't qualify as a right triangle and the Pythagoras theorem cannot be met.
Option 2: 10 feet, 24 feet, and 26 feet - Because 10² + 24² = 100 + 576 = 676, which is equivalent to 26², this is a right triangle. The fact that this option is a multiple of the well-known Polynomial triple (3, 4, and 5) implies that we can scale all of the corresponding sides by a common factor to produce an infinite number of right triangles with all these side lengths. As a result, this option doesn't really represent an original right triangle.
Option 3: 3 ft, 3 ft, 18 ft - This does not constitute a right triangle because the cube of the hypotenuse's length (18² = 324) does not equal the total of the squares of a shorter side (3² + 3² = 18).
To know more about Triangle visit:
https://brainly.com/question/17335144
#SPJ1
Answer:
2 feet, 3 feet, and 5 feet
Step-by-step explanation:
got it right on my test
Farmer TC is drinking 17 cups of tea by the sea. His cows are grazing behind him, and he notices that the square of the fifth root of the number of cows he has is 1 less than the number of cups of tea he is drinking. How many cows does TC have?
We can determine that TC owns one cow using exponential calculations.
Exponential equations: what are they?Exponent-based equations are those in which the exponent, or a portion of the exponent, is a variable.
For illustration, [tex]3^{x}[/tex] = 81.
In the question given,
TC is drinking no. of cups = 17
Let no. of cows TC has = x
Now according to the question, we can for the equation as:
[tex](\sqrt[5]{x} )^{2}[/tex] = 17 -1
⇒ x = [tex]\sqrt[5]{4}[/tex]
⇒ x = 1.319
⇒ x ≈ 1
Hence, TC owns 1 cow.
To know more about exponential equations, visit:
https://brainly.com/question/29506679
#SPJ1
A full bottle of cordial holds 800 m/ of cordial. A full bottle of cordial is mixed with water to make a drink to take onto a court for a tennis match. When mixed, the drink is put into a container. (c) What is the minimum capacity, in litres, of the container? 1000 m/= 1 litre
Answer:
We are not given the ratio of cordial to water used in the mixture, so we can assume that the entire bottle of cordial is mixed with water to make the drink.
Since the bottle of cordial holds 800 ml of cordial, the total volume of the mixture would be 800 ml + volume of water added. Let's call the volume of water added x.
Therefore, the total volume of the drink would be 800 ml + x.
We are asked to find the minimum capacity of the container in liters, so we need to convert the total volume of the drink from milliliters to liters:
800 ml + x = (800 + x)/1000 liters
Now we can set up an inequality to find the minimum value of x that would make the total volume of the drink at least 1 liter:
800 ml + x ≥ 1000 ml
Simplifying this inequality, we get:
x ≥ 200 ml
Therefore, the minimum volume of water that needs to be added to the cordial to make a drink with a total volume of at least 1 liter is 200 ml.
So the minimum capacity of the container would be:
800 ml + 200 ml = 1000 ml = 1 liter
Therefore, the minimum capacity of the container in liters would be 1 liter.
Step-by-step explanation:
DBA QUESTION #3
How is the distributive property used when finding the product of two polynomials?
Give an example.
How are polynomials closed under multiplication?
Answer:
The distributive property is used when finding the product of two polynomials by distributing one polynomial to each term of the other polynomial. For example, if we wanted to multiply (3x - 4)(2x + 5), we would use the distributive property by first multiplying 3x(-4) and 2x(5) and then adding the results together.
Polynomials are closed under multiplication, meaning that when two polynomials are multiplied together, the result is always another polynomial. This is true because a polynomial is a combination of constants and variables raised to non-negative integer powers, and when two polynomials are multiplied, the result is a combination of constants and variables raised to non-negative integer powers, which is a polynomial.
Find the value of x to the nearest degree
The value of x to the nearest degree is 30°.
What is Triangle ?
A triangle is one that has three sides, three angles, and whose total angles is always 180 degrees.
Three line segments are linked end to end to make a triangle, a two-dimensional geometric structure with three angles. These line segments are known as sides, and their intersections are known as vertices.
The measurements of a triangle's sides and angles are used to categorize it.
We can use trigonometric ratios to get the value of x in the right triangle given:
sin(x) = opposite/hypotenuse
[tex]sin(x) = 8/17x = sin^{-1(8/17)}x = 29.74^{o} $ (approx.) $[/tex]
Therefore, the value of x to the nearest degree is 30°.
To learn more about Triangle from given link.
brainly.com/question/2773823
#SPJ1
Find a sinusoidal function with the following four attributes:
(1) amplitude is 25, (2) period is 15, (3) midline is y=38, and (4)
f(1)=63.
The required sinusoidal function be,
⇒ y = 25 sin(2π/15 (x - 1 + 15/4 + 30nπ)) + 38
or
⇒ y = 25 sin(2π/15 (x - 1 - 15/4 - 30nπ)) + 38
Since we know that,
The general formula of a sinusoidal function is,
⇒ y = A sin(B(x - C)) + D,
where,
A is the amplitude
B is the frequency (and related to the period by T = 2π/B)
C is the phase shift (the horizontal displacement from the origin)
D is the vertical shift (the midline)
Using the given information,
Amplitude = 25, so A = 25.
Period = 15, so T = 15.
We know that,
T = 2π/B, so we can solve for B,
⇒ 15 = 2π/B
⇒ B = 2π/15
Midline is y = 38, so D = 38.
⇒ f(1) = 63,
so we can also use this to find the phase shift:
⇒ 63 = 25 sin(B(1-C)) + 38
⇒ 25 sin(B(1-C)) = 25
⇒ sin(B(1-C)) = 1
⇒ B(1-C) = π/2 + 2nπ or 3π/2 + 2nπ,
where n is an integer.
Substituting B and solving for C in each case, we get,
⇒ B(1-C) = π/2 + 2nπ 2π/15 (1 - C)
= π/2 + 2nπ 1 - C
= 15/4 + 30nπ C
= 1 - 15/4 - 30nπ
⇒ B(1-C) = 3π/2 + 2nπ 2π/15 (1 - C)
= 3π/2 + 2nπ 1 - C
= 15/4 + 60nπ/2 C
= 1 - 15/4 - 30nπ
So we have two possible functions are,
⇒ y = 25 sin(2π/15 (x - 1 + 15/4 + 30nπ)) + 38
or
⇒ y = 25 sin(2π/15 (x - 1 - 15/4 - 30nπ)) + 38
where n is any integer.
To learn more about function visit:
https://brainly.com/question/8892191
#SPJ12
Andre and Elena knew that after 28 days they would have 228 coins, but they wanted to find out how many coins that actually is.
Andre wrote: 228= 2 x 28 = 56
Elena said, “No, exponents mean repeated multiplication. It should be 28 x 28, which works out to be 784.”
Who do you agree with? Could they both be correct or wrong? Explain your reasoning.
To find the number of coins the statement made by Elena is correct.
What are exponents?The exponent of a number indicates how many times a number has been multiplied by itself. For instance, 34 indicates that we have multiplied 3 four times. Its full form is 3 3 3 3. Exponent is another name for a number's power. It might be an integer, a fraction, a negative integer, or a decimal.
Elena is on point. The formula 228 = 28 x 2 = 56 doesn't make sense in this situation since it suggests that they only counted for 28 days and received 228 coins, when the problem states that they counted for 28 days and received 228 coins. The fact that they counted for 28 days and came up with a total of 28 times 28 coins, or 784, makes the equation 228 = 28 x 28 make sense. Elena is accurate as a result.
Learn more about exponents here:
https://brainly.com/question/24331808
#SPJ1
PLEASE HELPPP!!
and thank you in advance!!!
The requried value of the expression [tex]\sum_{n=11}^{30}n-\sum_{n=1}^{10}n[/tex] is 355.
What is simplification?Simplification involves applying rules of arithmetic and algebra to remove unnecessary terms, factors, or operations from an expression.
Here,
To evaluate the expression:
[tex]\sum_{n=11}^{30}n-\sum_{n=1}^{10}n[/tex]
we can first simplify each summation separately and then subtract the second summation from the first.
[tex]\sum_{n=11}^{30}n[/tex]= 11 + 12 + 13 + ... + 29 + 30
We can use the formula for the sum of an arithmetic series to simplify this expression:
S = (n/2)(a + l)
In this case, a = 11, l = 30, and n = 20 (since we're summing 20 terms).
So, we have:
S = (20/2)(11 + 30)
S= 410
Similarly,
[tex]\sum_{n=1}^{10}n[/tex] = 1 + 2 + 3 + ... + 9 + 10
S = 55
Finally, we can subtract the second summation from the first:
= 410 - 55 = 355
Therefore, the value of the expression is 355.
Learn more about simplification here:
https://brainly.com/question/12501526
#SPJ1
Please help me :(( I need the answer :(
Answer:
[tex]\theta = 60^\circ \;and\; \theta = 300^\circ[/tex]
Step-by-step explanation:
Given
[tex]\sin \left(2\theta\right)=\sin \left(\theta\right)[/tex]
Use the identity: [tex]\sin(2\theta) = 2 \sin(\theta)\cos(\theta)[/tex]
=> [tex]2 \sin(\theta)\cos(\theta) = \sin(\theta)[/tex]
Divide both sides by [tex]\sin(\theta)[/tex]
=> [tex]2 \cos(\theta) = 1[/tex]
[tex]= > \cos(\theta) = \dfrac{1}{2}[/tex]
[tex]= > \,\theta=\cos^{-1}\left(\dfrac{1}{2}\right)[/tex]
[tex]\cos^{-1}\left(\dfrac{1}{2}\right) \;is\: \dfrac{\pi}{3}} \text{ in the first quadrant and $\dfrac{5\pi}{3}$ in the fourth quadrant}}[/tex]
In degrees this corresponds to
[tex]\dfrac{\pi}{3} = \dfrac{\pi}{3} \times \dfrac{180^\circ}{\pi} = 60^\circ\\\\and\\\\\dfrac{5\pi}{3} = \dfrac{5\pi}{3} \times \dfrac{180^\circ}{\pi} = 300^\circ\\[/tex]
Answer
[tex]\theta = 60^\circ \;and\; \theta = 300^\circ[/tex]
Select all expressions equivalent to (2-³.24) 2.
4
04
26.2-8
02-5.22
None of the expressions given is equivalent to (2 - ³√24)²..
What do mathematics expressions mean?Mathematical statements must contain a sentence, at least one mathematical operation, and at least two numbers or factors. With this mathematical operation, you can increase, split, add, or take something away. The shape of a phrase is as follows: Expression: (Number/Variable, , Math Operator)
Let's first simplify the expression (2 - ³√24)²:
(2 - ³√24)² = (2 - 24^(1/3))² = (2 - 2.29)² = (-0.29)² = 0.0841
Now we can check which expressions are equivalent to 0.0841 when (2 - ³√24)² is evaluated:
4 = 4.0000... (not equivalent to 0.0841)
04 = 0.04 (not equivalent to 0.0841)
26.2 - 8 = 18.2 (not equivalent to 0.0841)
02 - 5.22 = -3.22 (not equivalent to 0.0841)
Therefore, none of the expressions given is equivalent to (2 - ³√24)².
To know more about Expression visit:
brainly.com/question/1859113
#SPJ9
5. LetA=[142231]. Find a basis forRow(A)⊥using the dot product.
The vector x = [2, -3, 1] is a basis for Row(A)⊥. This means that any vector in Row(A)⊥ can be written as a multiple of x.
To find a basis for Row(A)⊥ using the dot product, we need to find a vector that is orthogonal to all the rows of A. This means that the dot product of the vector and each row of A should be equal to 0.
Let's say the vector we are looking for is x = [x1, x2, x3]. Then we need to solve the following system of equations:
x1 * 1 + x2 * 4 + x3 * 2 = 0
x1 * 2 + x2 * 2 + x3 * 1 = 0
x1 * 3 + x2 * 1 + x3 * 1 = 0
We can write this system of equations in matrix form as:
[1 4 2] [x1] = [0]
[2 2 1] [x2] = [0]
[3 1 1] [x3] = [0]
We can use Gaussian elimination to solve this system of equations. After performing the necessary row operations, we get:
[1 0 -2] [x1] = [0]
[0 1 3] [x2] = [0]
[0 0 0] [x3] = [0]
From the last equation, we can see that x3 can be any value. Let's choose x3 = 1. Then, from the second equation, we get x2 = -3, and from the first equation, we get x1 = 2.
So, the vector x = [2, -3, 1] is a basis for Row(A)⊥. This means that any vector in Row(A)⊥ can be written as a multiple of x.
Learn more about Dot product
brainly.com/question/29097076
#SPJ11
need help finding side length. asap pls
The missing side in the triangle has a length of 9.899.
What is the property of an isosceles triangle?In an isosceles triangle, the two sides are equal and the angles opposite to the two equal sides are also equal.
In the figure, ∠RQS = ∠RSQ =45°
Thus, it is an isosceles triangle with sides RQ=RS= 7
What is Pythagoras' theorem?
According to Pythagoras' theorem for a right-angled triangle:
Base² + Height²= Hypotensuse²
In the given figure: Base = 7 and Height = 7,
Thus, QS²= RQ² + RS²
QS² = 7² + 7²
QS = √98
=9.899
Learn more about Pythagoras' theorem here:
https://brainly.com/question/343682
#SPJ1
1. Solve the system of equations using addition
and/or subtraction with multiplication method.
Select the best answer with the format (x, y).
6x + 4y = 12
-6x+6y=-72
O (6, -6)
O (13, 1)
O (3,5)
(12, 12)
no solution
infinite solutions
The value of (x,y) is ( 6, -6) (optionA)
What is Simultaneous equation?Simultaneous equations are two or more algebraic equations that share variables e.g. x and y . They are called simultaneous equations because the equations are solved at the same time. For example, below are some simultaneous equations: 2x + 4y = 14, 4x − 4y = 4. 6a + b = 18, 4a + b = 14.
6x+4y = 12 equation 1
-6x +6y = -72 equation 2
add equation 1 and 2
10y = - 60
y = -60/10
y = -6
substitute -6 for y in equation 1
6x +4(-6) = 12
6x -24 = 12
6x = 12+24
6x = 36
x = 36/6 = 6
therefore the value of (x,y) = ( 6, -6)
learn more about Simultaneous equation from
https://brainly.com/question/148035
#SPJ1
I need help from a baddie
Answer:
on what?
Step-by-step explanation:
How do you get rid of an inner bully?
5 Ways to Stop that Inner Bully
Become aware of what you are saying to yourself. ...
Replace this with mindful attention to your feelings. ...
Realize you are not alone in your suffering. ...
Use soothing self-talk. ...
Access Your Wise Mind.
Question 1 (1 point ) Find the quotient and remainder using (12x^(3)+15x^(2)+21x)/(3x^(2)+4)
The quotient is 4x+5 and the remainder is -15x.
The quotient and remainder when dividing (12x^(3)+15x^(2)+21x)/(3x^(2)+4) can be found using polynomial long division.
First, divide the leading term of the numerator by the leading term of the denominator: (12x^(3))/(3x^(2)) = 4x. This is the first term of the quotient.
Next, multiply the first term of the quotient by the denominator and subtract the result from the numerator: (12x^(3)+15x^(2)+21x) - (4x)(3x^(2)+4) = 15x^(2)+5x.
Now, repeat the process with the new numerator: (15x^(2))/(3x^(2)) = 5. This is the second term of the quotient.
Again, multiply the second term of the quotient by the denominator and subtract the result from the new numerator: (15x^(2)+5x) - (5)(3x^(2)+4) = -15x.
Since the degree of the new numerator is less than the degree of the denominator, the division is complete and the new numerator is the remainder.
Therefore, the quotient is 4x+5 and the remainder is -15x.
In conclusion, the quotient and remainder when dividing (12x^(3)+15x^(2)+21x)/(3x^(2)+4) are 4x+5 and -15x, respectively.
Learn more about polynomial
brainly.com/question/11536910
#SPJ11
After your collection, you obtain an average disc width of 18.76cm with a sample size of 56.
1) Enter in the appropriate null mean.
2)According to your null distribution, what is the probability of obtaining your sample estimate or more extreme? what is the p-value?
a)18
b)0.023
1) The null mean for the disc width is assumed to be 18.
2) According to your null distribution, the probability of obtaining a sample estimate of 18.76 cm or more extreme is 0.023, and the p-value is 0.023.
Learn more about P-value
brainly.com/question/30182084
#SPJ11