Hypothesis 1: There is a positive correlation between gender and GPA.
Hypothesis 2: There is a positive correlation between age and midterm score.
Hypothesis 3: There is a negative correlation between nationality and income.
Hypothesis 4: There is a negative correlation between expenditure and no. of credits.
Hypothesis 5: There is a positive correlation between no. of absences and learning preference.
Hypothesis 6: There is a positive correlation between online device usage and income.
To know more about variables refer here:
https://brainly.com/question/17344045
#SPJ11
Write a quadratic function f whose zeros are -2 and 9 .
To write a quadratic function f whose zeros are -2 and 9 , we have to factor the function by (x+2) and (x-9).
How to find the quadratic function of f?A quadratic function is a second-degree mathematical function whose graph is a parabola. The general form of a quadratic function is given by f(x) = ax² + bx + c, where a, b and c are constants and a cannot be equal to zero. The variable x represents the input of the function and f(x) represents the output or result of the function. To find the quadratic function of f we first need to multiply these factors, like this:
f(x)= (x+2) (x-9)Expanding the product, we have:f(x)= x²-7x-18So the quadratic function whose zeros are -2 and 9 is:
f(x)=x²-7x-18Find more about quadratic function at:
https://brainly.com/question/1214333
#SPJ1
On average, a clothing store gets 120 customers per day. What is the probability that the store will have fewer than 12 customers in the first two hours? (Assume the store is open 12 hours each day. Round your answer to four decimal places. )
The probability that clothing store have fewer than 12 customers in first 2 hours is 0.0003.
We know that, the store is open for 12 hours and gets an average of 120 customers per day, the expected number of customers in a 2-hour period can be calculated as:
The Expected number of customers in 2 hours = 120×(2/12) = 20 customers,
We, use the Poisson distribution to find the probability of having fewer than 12 customers in the first two hours.
The Poisson distribution is given by : P(X = k) = (e^(-λ) × λ^k)/k! ;
where X = random variable (the number of customers), λ = expected value of X (in this case, λ = 20), k = number of customers we want to calculate the probability for, and k! is the factorial of k.
To find the probability of having fewer than 12 customers in the first 2 hours, we need to calculate the probability for k = 0, 1, 2, ..., 11 and add up the probabilities.
So, we have,
⇒ P(X < 12) = e⁻²⁰×(20⁰/0!) + e⁻²⁰×(20¹/1!) + ... + e⁻²⁰×(20¹¹/11!);
On solving, We get,
⇒ P(X < 12) = 0.0003,
Therefore, the required probability is 0.0003.
Learn more about Probability here
https://brainly.com/question/25870256
#SPJ4
What is the domain and range of y = log(-x + 3) - 1?
Answer:
The argument of the logarithmic function should be greater than zero.
Thus, for y = log(-x + 3) - 1 to be real-valued, we need:
-x + 3 > 0
or
x < 3
So, the domain of the function is all real numbers less than 3.
To find the range, let's consider the behavior of the logarithmic function.
As x approaches 3 from the left, the argument of the logarithm approaches zero from the negative side, which means the logarithm approaches negative infinity.
As x approaches negative infinity, the argument of the logarithm becomes very large and negative, which means the logarithm approaches negative infinity.
Therefore, the range of the function y = log(-x + 3) - 1 is all real numbers.
Step-by-step explanation:
Match each number with its name
Answer:
1,254 - whole number; 0.13 - terminating; 0.123456789... - non-terminating/non-repetitive; 0.143143143... - repeating decimal
Step-by-step explanation:
A whole number is a number without any decimals or fractions. A terminating number is one that has an end. A non-terminating number is one that continues on forever. A repeating number is one that has the same pattern and continues on forever.
What term refers to the achievements that will take a person awhile to meet? A. backwards goals B. short-term goals C. long-term goals D. visualization
Answer:
C is the answer
Help I don't understand.
what’s the inverse function of
f (x) = 2x+3
Answer:
[tex]f^{2} (x) = \frac{1}{2} x + \frac{3}{2}[/tex]Step-by-step explanation:
Answer:
[tex]f^{-1}[/tex] = [tex]\frac{x-3}{2}[/tex]
The inverse of a function is just the opposite of the function.
Please help me! I'm horrible at math!
Answer:
I think the answer is C. 65 m
Step-by-step explanation:
Answer:
L=22
Step-by-step explanation:
For the area of a rectangle you have to multiply the width by the length.
This problem would look like L*W=A. Being that you already have the area and the width, you would just have to fill in for these.
L*6.5=143
Then just follow the rules of PEMDAS to sole for L. In this case this would be dividing 6.5 by both sides.
L=22
Zach's plants grew 2 feet in 7 weeks.
How many centimeters did Zach's plants grow?
1 ft = 0.3 m
1 m = 100 cm
Enter your answer in the box.
( ) cm
Using the unitary method, we found that Zach's plants grew 60cm in 7 weeks.
What is meant by the unitary method?The unitary method is a strategy for problem-solving that involves first determining the value of a single unit and then multiplying that value to determine the required value. Therefore, the goal of this method is to establish values in relation to a single unit. Always write the things that need to be calculated on the right side and the things that are known on the left side to simplify things. The unitary approach must be applied whenever we need to determine the ratio of one quantity to another.
Given that the height the plant grew in 2 weeks = 2 feet
We are asked to convert it into centimetres.
This can be done using the unitary method.
Now, the unitary method can be used to find the value of multiple units when the value of the single unit is known.
Here we are given,
1 ft = 0.3 m
But we need feet and centimetre relation.
So we use the metre and centimetres relation.
1m = 100cm
Using the unitary method,
0.3m = 0.3* 100 = 30 cm
So,
1 feet = 0.3m = 30 cm
Then,
2 feet = 30 * 2 = 60 cm
Therefore using the unitary method, we found that Zach's plants grew 60 cm in 7 weeks.
To learn more about the unitary method, follow the link.
https://brainly.com/question/24587372
#SPJ1
Suppose vector d = vector a - vector b where vector vector a has components ax = 4, ay = 5 and vector vector b has components bx = -4, by = -4
The vector representing D = A - B has following values,
1. x- component of vector D = 9 and y- component of vector D = 9.
2. Magnitude and direction of vector D is equal to 12.73 and 45° above the positive x-axis.
Here, Vector D= A-B __(1)
Components of vector A are,
Ax=5
Ay=5
Components of vector B are,
Bx= -4,
By= -4
1. Subtract the x- and y-components of vector B from vector A, respectively by substituting in (1) we get,
Dx = Ax - Bx
= 5 - (-4)
= 5 + 4
= 9
Dy = Ay - By
= 5 - (-4)
= 5 + 4
= 9
2. Magnitude of vector D, use the Pythagorean theorem,
|D| = √(Dx² + Dy²)
= √(9² + 9²)
= √(162)
≈ 12.73
Direction of vector D, use trigonometry.
Angle θ represents vector D makes angle with positive x-axis is ,
θ = tan⁻¹(Dy / Dx)
= tan⁻¹(9 / 9)
= tan⁻¹(1)
= 45°
Therefore, required value of the vectors are,
1. x- and y-components of vector D are 9 and 9, respectively.
2. Magnitude of vector D is 12.73, and direction is 45° above the positive x-axis.
Learn more about vectors here
brainly.com/question/3129747
#SPJ4
The above question is incomplete , the complete question is:
Suppose D= A-B where vector A has components Ax=5, and Ay=5 and vector B has components Bx= -4, By= -4.
1. What are the x- and y- components of vector D?
2. What are the magnitude and direction of vector D?
five students each wrote an expression to represent the perimeter of the given rectangle [3x+3x) +(4x+4x)+( 3+3)
Answer:
The given rectangle is not fully defined, as it is missing some measurements such as the length and width. Without this information, it is not possible to accurately calculate the perimeter of the rectangle.
However, assuming that the missing measurement is the width of the rectangle, then the expressions given by the five students would be:
2(3x + 4x + 3) = 14x + 6
2(6x + 6) + 2(4x + 6) = 20x + 24
2(3x + 3) + 2(4x + 3) = 14x + 12
2(6x + 3) + 2(4x + 3) = 20x + 12
2(6x + 3x) + 2(3 + 4x) = 18x + 10
Note that all expressions follow the formula for the perimeter of a rectangle, which is P = 2l + 2w, where l is the length and w is the width of the rectangle.
Magnus needed to put 6 gallons 3quarts of gas into his boat on Monday and twice as much on Saturday if he had 19 gallon jug of gas available did he have enough gas for both days.
Therefore , the solution of the given problem of unitary method comes out to be he only had a 19 gallon jug of petroleum, which was insufficient for both days.
Describe the unitary method.To finish the job using the unitary method, multiply the subsets measures taken from this microsecond section by two. In a nutshell, when a wanted thing is present, the characterized by a variable group but also colour groups are both eliminated from the unit technique. For instance, 40 changeable-price pencils would cost Inr ($1.01). It's conceivable that one nation will have complete control over the strategy used to achieve this. Almost all living things have a unique trait.
Here,
Magnus had to fill up his skiff with 6 gallons and 3 quarts of gas on Monday. We can observe that 1 quart is equivalent to 0.25 gallons to express this in decimal form:
=> 6 gallons 3 quarts = 6 + 3/4 = 6.75 gallons
Magnus used 6.75 litres of fuel on Monday as a result.
He required twice as much petrol on Saturday as he did on Monday:
=> 13.5 gallons from
=> 2 (6.75" gallons).
So on Saturday, he consumed 13.5 litres of fuel.
Overall, he employed:
=> 6.75 gallons + 13.5 gallons = 20.25 gallons
He only had a 19 gallon jug of petroleum, which was insufficient for both days.
To know more about unitary method visit:
https://brainly.com/question/28276953
#SPJ1
the data is given for 62 students in certain class regarding their mathematics marks out of 100.take the classes 0-10,10-20..and prepare frequency distribution table and cumulative frequency table more than or equal to type 55,60,81,90,45,65,45,52,30,85,20,10,75,95,09,20,25,39,45,50,78,70,46,64,42,58,31,82,27,11,78,97,07,22,27,36,35,40,75,80,47,69,48,59,32,83,23,17,77,45,05,23,37,38,35,25,46,57,68,45,47,49.from the prepared table answer the following question 1.
The frequency and cumulative frequency distribution tables for the given data are below in the solution part.
What is the cumulative frequency of the data?Cumulative frequency is used to calculate the number of observations in a data collection that is above (or below) a specific value.
The data is provided for 62 students in a certain class in terms of their maths marks out of 100.
55, 60, 81, 90, 45, 65, 45, 52, 30, 85, 20, 10, 75, 95, 09, 20, 25, 39, 45, 50, 78, 70, 46, 64, 42, 58, 31, 82, 27, 11, 78, 97, 07, 22, 2 36, 35, 40, 75, 80, 47, 69, 48, 59, 32, 83, 23, 17, 77, 45, 05, 23, 37, 38, 35, 25, 46, 57, 68, 45, 47, 49.
The frequency distribution table for the given data is as follows:
Class Frequency
(Marks obtained) (No. of students)
0 - 10 4
10 - 20 3
20 - 30 8
30 - 40 9
40 - 50 13
50 - 60 6
60 - 70 5
70 - 80 6
80 - 90 5
90 - 100 3
N = 62
The cumulative frequency table more than or equal to the type for the given data is as follows:
Class Frequency Cumulative frequency
(Marks obtained) (No. of students)
0 - 10 4 62
10 - 20 3 58
20 - 30 8 55
30 - 40 9 47
40 - 50 13 38
50 - 60 6 25
60 - 70 5 19
70 - 80 6 14
80 - 90 5 8
90 - 100 3 3
N = 62
Learn more about the cumulative frequency here:
https://brainly.com/question/30087370
#SPJ1
Which graph models function m?
x- 0 1 2 3 4 5
m(x)- -9 -4 -1 0 -1 -4
15.F(x)=−529, F(x)=x^2+33; h(x)=∣x∣−233 ; g(x)=2x
The values of F(x), h(x), and g(x) when x=3 are 42, -230, and 6, respectively.
The given functions are F(x)=−529, F(x)=x^2+33, h(x)=∣x∣−233, and g(x)=2x.
To find the value of F(x) when x=3, we can substitute x=3 into the equation F(x)=x^2+33 and solve for F(x):
F(x)=x^2+33
F(3)=3^2+33
F(3)=9+33
F(3)=42
Similarly, to find the value of h(x) when x=3, we can substitute x=3 into the equation h(x)=∣x∣−233 and solve for h(x):
h(x)=∣x∣−233
h(3)=∣3∣−233
h(3)=3−233
h(3)=-230
And to find the value of g(x) when x=3, we can substitute x=3 into the equation g(x)=2x and solve for g(x):
g(x)=2x
g(3)=2(3)
g(3)=6
Therefore, the values of F(x), h(x), and g(x) when x=3 are 42, -230, and 6, respectively.
Learn about Functions
brainly.com/question/12431044
#SPJ11
what is the median of 1, 1, 2, 3, 7, 9, 10, 10, 15, 17, 19
Answer:
9
Step-by-step explanation:
The median is the number in the middle of a set of numbers.
Our set of numbers: 1, 1, 2, 3, 7, 9, 10, 10, 15, 17, 19
In this case the median is 9
PNDM got dilated about the origin and formed P' N' D' M'. Write the dilation rule.
(x,y) -->
Since PNDM got dilated about the origin and formed P' N' D' M', the dilation rule is (x, y) → (2x, 2y).
What is scale factor?In Geometry, the scale factor of a geometric figure can be calculated by dividing the dimension of the image (new figure) by the dimension of the pre-image (original figure):
Scale factor = Dimension of image (new figure)/Dimension of pre-image(original figure)
Substituting the given parameters into the scale factor formula, we have the following;
Scale factor = Dimension of image/Dimension of pre-image
Scale factor = 4/2
Scale factor, k = 2.
Therefore, the dilation rule is given by:
(x, y) → (kx, ky)
(x, y) → (2x, 2y)
Read more on dilation here: brainly.com/question/20482938
#SPJ1
HELPPP!!!!
What should be reason 2 in the following proof?
The reason that should be used to complete statement 2 "∠2 and ∠3 are supplementary" is linear pair postulate.
What is the linear pair theorem?In Mathematics, the linear pair theorem is sometimes referred to as linear pair postulate and it states that the measure of two angles would add up to 180° provided that they both form a linear pair.
This ultimately implies that, the measure of the sum of two adjacent angles would be equal to 180° when two parallel lines are cut through by a transversal.
According to the linear pair theorem, we have the following supplementary angles:
∠2 + ∠3 = 180°
Read more on linear pair theorem here: brainly.com/question/27979699
#SPJ1
Man this shi 40 points
The match of the terms and correct locations are:
1. A - Amplitude
2. B is compression
3. C is rarefaction
What are longitudinal waves?A longitudinal wave is a form of wave in which its direction of propagation is similar to the direction of vibration of the particles of the medium through which the wave is travelling. The waves generated by a stretched or compressed spiral spring produces longitudinal waves.
When a spiral spring is streched or compressed, on removal of the force a series of compression and rarefactions of the sections of the spring are produced. This sections vibrates in the direction of propagation of the waves produced.
Thus the match of the terms and correct locations are:
i. A - Amplitude
ii. B is compression
iii. C is rarefaction
Learn more about longitudinal waves at https://brainly.com/question/12536970
#SPJ1
Pls help me it’s to go from lease value to the greatest and closest to zero!
According to the information, the expressions that would match the descriptions would be both expressions have the same result, so it doesn't matter which description they are associated with. both are the largest and the smallest value.
How to find the correct expressions for the descriptions?To find the correct descriptions that match the expressions we must look at the graph. In this case q and n represent two numbers on the number line. In this case, to relate them to a description we must find the number to which they refer:
q = -1n = -4The expression q - n would be equal to -1 - 4 = -5The expression n - q would be equal to - 4 - 1 = -5In accordance with the above, we could say that the descriptions would look like this:
Closest to zero = qLeast value = q - nGreatest value = n - qIn this case, both expressions have the same result, so it doesn't matter which description they are associated with. both are the largest and the smallest value.
Learn more about values in: https://brainly.com/question/30145972
#SPJ1
Which inequality is true when the value of x is -3?
-x+6.5 < 1
-x+6.5 < -1
x + 6.5 < -1
-x+6.5 > 1
Answer:
-x + 6.5 > 1 Is true.
Step-by-step explanation:
The explaination is given in the Picture.
pls I need help with this
Answer:34
Step-by-step explanation:
Curtis wants to save money for the future. Curtis invests $700 in an
account that pays interest rate of 6.25%.
How many years will it take for the account to reach $15,900? Round
your answer to the nearest hundredth.
A = = P(1+r)t
Solve the equation in exponential form Y^x = 65 / 177 A. Log 65/177 X= y B. log x 65/177 = y C. Log 65/177 y = x D. Log y 65/177 = X
Therefore, the correct answer is C. Log 65/177 y = x.
The correct answer is C. Log 65/177 y = x.
To solve the equation in exponential form, we need to use the properties of logarithms. The equation Y^x = 65 / 177 can be rewritten in logarithmic form as Log Y (65/177) = x. Using the property of logarithms, Log a^b = b Log a, we can rewrite the equation as Log (65/177) Y = x. This is the same as option C, Log 65/177 y = x.
Therefore, the correct answer is C. Log 65/177 y = x.
Learn more about equation
brainly.com/question/29657992
#SPJ11
4K + 12 = -36
solving 2 step equations
Step-by-step explanation:
[tex]4k + 12 = - 36 \\ 4k = - 36 - 12 \\ 4k = - 48 \\ k = - \frac{48}{4} \\ k = - 12[/tex]
#hope it's helpful to you
. Line y = 2x + 1 is
transformed by a dilation
with a scale factor of 2 and centered at (3, 5). Is
the image the same line or a parallel line? How do
you know?
Use the remainder theorem to find the remainder when
dividing
f(x) = -4x^3 + 2x^3 -3x+5 by x - 2
-17.
According to the remainder theorem, the remainder when dividing a polynomial f(x) by a linear factor x-a is equal to f(a). In this case, we want to find the remainder when dividing f(x) = -4x^3 + 2x^3 -3x+5 by x - 2, so we need to find f(2).
f(2) = -4(2)^3 + 2(2)^3 -3(2) + 5
f(2) = -4(8) + 2(8) -6 + 5
f(2) = -32 + 16 -6 + 5
f(2) = -17
Therefore, the remainder when dividing f(x) = -4x^3 + 2x^3 -3x+5 by x - 2 is -17.
Learn more about remainder theorem
brainly.com/question/13264870
#SPJ11
raina bulit a rectangular fence around her pigpen that had a length of 325 feet and a width of 185 feet. what is the perimeter of raina's pigpen?
The perimeter of Raina's pigpen is 1020 feet.
What is Perimeter?Perimeter is the total distance around the edge of a two-dimensional shape. It is the sum of the lengths of all sides of the shape. Perimeter is typically measured in units such as inches, feet, meters, or centimeters, depending on the system of measurement being used.
To find the perimeter of the rectangular pigpen, we need to add up the lengths of all four sides. The formula for the perimeter of a rectangle is:
perimeter = 2 * length + 2 * width
Plugging in the values we know, we get:
perimeter = 2 * 325 + 2 * 185
perimeter = 650 + 370
perimeter = 1020
Therefore, the perimeter of Raina's pigpen is 1020 feet.
To know more about Perimeter visit:
https://brainly.com/question/25092270
#SPJ1
Cindy bought 7/8 yard of ribbon jacob bought 4/5 the length as cindy how much ribbon did jacob buy
If Cindy bought 7/8 yards of ribbon, then the length of Ribbon that Jacob bought is 7/10 yard.
The length of ribbon which Cindy bought is = 7/8 yard;
Jacob bought 4/5 the length as Cindy,
Which means that he bought, (4/5) × (7/8) yards of ribbon,
On multiplying these two fractions,
We get,
⇒ (4/5) × (7/8) = (4×7)/(5×8) = 28/40;
On simplifying this fraction, we divide both the numerator and denominator by their greatest common factor, which is 4,
We get,
⇒ 28/40 = 7/10,
Therefore, Jacob bought 7/10 yard of ribbon.
Learn more about Length here
https://brainly.com/question/15102009
#SPJ4
plsssssssss hlp, geometry
Answer:
I believe opposing angles are parallel, so it would be 98
Step-by-step explanation: