A multiple regression model has the form As x1 increases by 1 unit (holding x2 constant), y is expected to O a. increase by 2 units O b. increase by 9 units O c. decrease by 9 units O d. decrease by 2 units

Answer:

C) -2/9

Step-by-step explanation:

\(\displaystyle -\frac{1}{6}\biggr[3-15\biggr(\frac{1}{3}\biggr)^2\biggr]\\\\=-\frac{1}{6}\biggr[3-15\biggr(\frac{1}{9}\biggr)\biggr]\\\\=-\frac{1}{6}\biggr[3-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{27}{9}-\frac{15}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{12}{9}\biggr]\\\\=-\frac{1}{6}\biggr[\frac{4}{3}\biggr]\\\\=-\frac{4}{18}\\\\=-\frac{2}{9}\)

Answer:

Hence, Option (C) - 2/9 is the Answer:

Step-by-step explanation:

-1/6 [3 -15(1/3)^2]

-1/6(3 -15)(1/9))

-1/6(3 - 5/3)

-1/6 (4/3)

Hence, Option (C) - 2/9 is the Answer:

I hope it helps!

Answer:

  y = -3

Step-by-step explanation:

The y-axis is a vertical line, so the perpendicular line is a horizontal line. It is generally written in the form ...

  y = constant

For the line to go through the point (-5, -3), the constant must match the y-coordinate of the point: -3

  y = -3 . . . . your equation

__

Such a line has a slope of 0, so could be written in "slope-intercept form" as ...

  y = 0x -3

We generally omit terms that evaluate to zero.

The given expression is 4x + 2 + 7y. The true statements about this expression are:

An expression is formed by the terms connected with the arithmetic operations. Where the terms are formed by the coefficients and variables. A constant is also said to be a term in the expression.

Example: ax + by + c = 0; here there are 3 terms, ax, by and c, two variables x and y, and one constant c. The constant or numerals with the variables are said to be coefficients.

The given expression is 4x + 2 + 7y.

The expression has 3 terms. they are 4x, 2, 7y.

There are two variables x and y.

The coefficients for these variables are 4 and 7 respectively.

The numeral 2 is a constant in the given expression.

So, statements 1, 3, and 4 are true.

Learn more about expressions here:

https://brainly.com/question/4344214

#SPJ1

Step-by-step explanation:

Team A time is    1 garden / ( 1 garden/ 2 hr + 1 garden/4 hr) = 1 1/3 hr

Team B =   1 / ( 1/3 + 1/3) =  1 1/2 hr

Team A wins !

Answer:

3/4   and  2/5 have a common denominator of 20, so re-write

15/20x - 2 = 8/20       Now multiply both sides by 20

15x-40 = 8

Step-by-step explanation:

By analyzing the graph and evaluating the objective function at each vertex of the feasible region, we can find the optimal solution, which is the vertex that maximizes the objective function z = 3x + y.

To find the optimal solution of the given problem using the graphical method, we need to plot the feasible region determined by the given constraints and then identify the point within that region that maximizes the objective function.

Let's start by graphing the constraints:

1. Plot the line 2x - y = 5. To do this, find two points on the line by setting x = 0 and solving for y, and setting y = 0 and solving for x. Connect the two points to draw the line.

2. Plot the line -x + 3y = 6 using a similar process.

3. The x-axis and y-axis represent the constraints x ≥ 0 and y ≥ 0, respectively.

Next, identify the feasible region, which is the region where all the constraints are satisfied. This region will be the intersection of the shaded regions determined by each constraint.

Finally, we need to identify the point within the feasible region that maximizes the objective function z = 3x + y. The optimal solution will be the vertex of the feasible region that gives the highest value for the objective function. This can be determined by evaluating the objective function at each vertex and comparing the values.

Note: Without a specific graph or additional information, it is not possible to provide the precise coordinates of the optimal solution in this case.

For more such questions on graph

https://brainly.com/question/19040584

#SPJ8

Answer: 14

Step-by-step explanation:

f(-2) means x is -2, so we can solve for when x = -2 by plugging -2 into the equation.

\(f(-2) = 3(-2^{2}) - (-2)\\=3(4) + 2\\=12+2\\=14\)

Answer:

Step-by-step explanation:

So what you start with is the variable "x" in 3 different places. When you are changing the x variable, you need to plug it into every variable in the equation. Start by doing that and the problem will look like: f (-2) = 3 (-2)^2 - (-2) Now you can start with either the 3 (-2)^2 or the - (-2), but it is better to go from left to right.

Your Best

Elina

Answer:

\(\textsf{A)} \quad \sf P(2)=\dfrac{1}{6}\)

\(\textsf{B)} \quad \sf P(even)=\dfrac{1}{2}\)

\(\textsf{C)} \quad \sf P(greater\;than\;5)=\dfrac{1}{6}\)

Step-by-step explanation:

Probability is a measure of the likelihood or chance that an event will occur, expressed as a number between 0 (indicating impossibility) and 1 (indicating certainty).

The probability of an event occurring can be calculated by dividing the number of ways it can occur by the total number of possible outcomes:

\(\boxed{\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}}\)

A standard die is a six-sided cube with numbered faces from 1 to 6. Therefore, the total number of possible outcomes when a die is rolled is 6.

Since there is only one face on the die numbered as 2, the probability of rolling a 2 is:

\(\sf P(2)=\dfrac{1}{6}\)

Since there are three even-numbered faces on the die (2, 4, and 6), the probability of rolling an even number is:

\(\sf P(even)=\dfrac{3}{6}=\dfrac{3 \div 3}{6 \div 3}=\dfrac{1}{2}\)

Since there is one face on the die with a number greater than 5, the probability of rolling a number greater than 5 is:

\(\sf P(greater\;than\;5)=\dfrac{1}{6}\)

Answer:

B

Step-by-step explanation:

Answer:

9 inches

Step-by-step explanation:

Area of rectangle= length ×width

Let the length of the rectangle be x inches.

Width of rectangle= (x +2) inches

since the width is 2 more than the length.

63= x(x+2)

63= x(x) +2x

Bringing constant to one side,

x² +2x -63= 0

(x +9)(x-7) = 0 (factorise)

x+9= 0 or x-7= 0

x= -9 or x= 7

(reject)

width of rectangle

= 7+2

= 9 inches

*We reject x= -9 since the length of the rectangle cannot be a negative number.

Answer:7

Step-by-step explanation:

7

The point charges placed 0.500 m apart are 10.4 nC and 43.9 nC. Then, the electric field halfway between these charges will be -4824 N/C.

The physical field that surrounds particles with an electrical charge is called an electric field. All other charged particles in the field are affected by it, either being attracted to it or being repelled by it.

The electric field because of a point charge q is written as \(E=\frac{kq}{r^2}\)

Positive point charges cause the electric field to point away from the point, whereas negative point charges cause the electric field to point in the direction of the point. Then, the electric field of the midpoint p in the diagram is written as,

\(\begin{aligned}E_p&=\mathrm{\frac{k(10.4\;nC)}{(0.25\;m)^2}-\frac{k(43.9\;nC)}{(0.25\;m)^2}}\\&=\mathrm{\frac{k(10.4-43.9)\times10^{-9}\;C}{(0.25\;m)^2}}\\&=-\mathrm{\frac{9\times 10^9\;Nm^2/C^2\times 33.5\times10^{-9}\;C}{(0.25\;m)^2}}\\&=-\mathrm{4824\;N/C}\end{aligned}\)

The required answer is -4824 N/C.

To know more about electric fields:

https://brainly.com/question/4440057

#SPJ4

Answer:

The rate is 5 dollars per student.

Step-by-step explanation:

The rate per student can be found with \(\frac{dollars}{student}\):

\(\frac{150dollars}{30student}=5\frac{dollars}{student}\\\\\frac{350dollars}{70student}=5\frac{dollars}{student}\)

The rate is 5 dollars per student.

-4× = 16 answer: -4

Step-by-step explanation:

-4 × -4 = 16

Answer:

theres is your answer

Step-by-step explanation:

Explanation: y=4x−5 is in the form of the slope-intercept formula for a linear equation, y=mx+b , where m is the slope and b is the y-intercept. By definition, the y-intercept is −5 .

Answer:

C

Step-by-step explanation:

the answer is C because the 2 angles are congruent, making it the same degree

hope this helps :)

Answer:

160

Step-by-step explanation:

y is the same shape and degree is 1 60 on the other side please mark brainliest

the form of the linear equation is

with the given equation we have

where m=2, m is the slope of the line

if we have parallel lines the slope needs to be the same

so in order to find a linear equation parallel to y=2x+4

we use the slope m=2 and the point given (-1,6)

where (-1,6)=(x1,y1)

then

the equation of the line parallel to y=2x-4 is y=2x+8

Answer:

B: 15 quarters

Step-by-step explanation:

Step 1: Setup Coin Value and Coin Total Equation:

Coin Value Equation → 0.1d + 0.25q = $7.25 where d = dimes and q = quarters

Coin Total Equation → d + q = 50

Step 2: Rearrange Coin Total Equation in terms of dimes (d)

d = 50 - q ← Revised Coin Total Equation

Step 3: Plug in our Revised Coin Total Equation for d into our Coin Value Equation:

0.1(50 - q) + 0.25q = $7.25

0.1(50) - 0.1(q) + 0.25q = $7.25

5 - 0.1q + 0.25q = $7.25

5 + (0.25 - 0.1)q = $7.25

5 + 0.15q = $7.25

Step 4: Subtract 5 from each side of the equation to isolate q

5 - 5 + 0.15q = $7.25 - 5

0.15q = 2.25

Step 5: Divide each side of the equation by 0.15 to isolate q

0.15q

0.15

=

2.25

0.15

q = 15

Step 6: Using our value for q, Solve for d using our Coin Total Equation:

d + 15 = 50

Subtracting 15 from both sides, we get d + 15 - 15 = 50 - 15

d = 35

Summarizing our word problem, we see that 15 quarters and 35 dimes adds up to $7.25

Answer:

The answer to this solution is 8x^4-16

Step-by-step explanation:

the first video man and share with you search the Internet resources to help you find the best service providers to get your free and

The length the line segment DF is 21 units

What is Similarity of Triangles?

Two objects are comparable in Euclidean geometry if they have the same form or one has the same shape as the mirror image of the other. More exactly, one can be created by evenly scaling the other, potentially with extra translation, rotation, and reflection.

Since, the question is incomplete I can only assume that the traingles are similar

So, by rule of similarity we can say that ED/BA = DF/AC

by this 15/5 = DF/7

This implies that the length of DF is 21 units

To learn more about Similarity of Triangle from the given link

https://brainly.com/question/1058720

#SPJ1

Answer:

2 miles

Step-by-step explanation:

Divide 126720 by 63360.

Answer:

the answer is 2 miles

Step-by-step explanation:

(hope this helps)

Answer:

r = 5

Step-by-step explanation:

To solve for r, plug in the change in x values and change in y values, since the hypotenuse is simply the diagonal of both the y-coordinate and x-coordinates shown via drawing legs on the vertical and horizontal axis. So, since (0,0) is the initial point, r = sqr[(-4-0)^2 + (-3-0)^2 = sqr(16 + 9) = 5.

Now, the angle theta is the angle in which the sine, cosine, and tangent ratios are found. Simply use opposite over hypotenuse for sine, adjacent over hypotenuse for cosine, and opposite over adjacent for tangent using theta as the angle in which these values are obtained.

The acceleration of the collar at point A is 5 ft/s^2.

A) To determine the normal force on the collar at point A, we need to consider the forces acting on the collar. The only force acting on the collar in the vertical direction is the weight of the collar (5 lb), which is balanced by the normal force exerted by the rod. Therefore, we can write:

N - 5 = 0

where N is the normal force. Solving for N, we get:

N = 5 lb

B) To determine the acceleration of the collar at point A, we need to use Newton's second law, which states that the net force acting on an object is equal to its mass times its acceleration. The net force on the collar is given by the force exerted by the spring, which is equal to the spring constant times the displacement of the collar from its unstretched length. At point A, the displacement of the collar is:

x = L - y = 3 - 0 = 3 ft

where L is the length of the rod and y is the position of the collar on the rod. Therefore, the force exerted by the spring is:

F = kx = 10 lb/ft × 3 ft = 30 lb

The weight of the collar is:

W = mg = 5 lb

where g is the acceleration due to gravity. The net force on the collar is therefore:

Fnet = F - W = 30 - 5 = 25 lb

Using Newton's second law, we can write:

Fnet = ma

where a is the acceleration of the collar. Solving for a, we get:

a = Fnet / m = 25 lb / 5 lb = 5 ft/s^2

Therefore, the acceleration of the collar at point A is 5 ft/s^2.

Accelerationhttps://brainly.com/question/16850867

#SPJ11

Answer:

164 cookies each

Step-by-step explanation:

divide 492 by 3. 3 Because it says Diana and her friends, and 492 because that is the total cookie count.

Correct question is;

Consider these statements written in ordinary language:

A The speed of the car is proportional to the distance it has traveled.

B The car is speeding up.

C The car is slowing down.

D The car always travels the same distance in the same time interval.

E We are driving backwards.

F Our acceleration is decreasing. Denoting by s(t) the distance covered by the car at time t, and letting k denote a constant, match these statements with the following mathematical statements by entering the letters A through F on the appropriate boxes:

s′′<0.

s′ is constant

s′<0

s′′′<0

s′′>0

s′=ks

Answer:

Answers given below.

Step-by-step explanation:

F) acceleration is the second derivative of distance with respect to time.

Thus; s'' < 0

D) Car travels the same distance in the same time interval. This means the speed is constant. Speed is the first derivative of distance with time. Thus;

s' is constant

E) Driving backwards means that speed is; s' < 0

C) Car is slowing down means negative acceleration. Thus; s'' < 0

B) Car is speeding up means acceleration is greater than 0. Thus: s'' > 0

A) Car speed being proportional to the distance it has covered means that; s' ∝ s. Thus;

s' = ks

Answer:

9

Step-by-step explanation:

You don't need to pass through each edge once.

If we name the top vertex 1 and the bottom vertex 2 then here are the possible combinations:

A-1-B

A-B

A-2-B

A-1-B-A-2-B

A-2-B-A-1-B

A-B-1-A-2-B

A-B-2-A-1-B

A-1-B-2-A-B

A-2-B-1-A-B

Some people say 6 because they think you need to pass through all the edges. But the only restriction with travelling on the edges is you can't pass one twice. The point is read the wording and it becomes easy.

Hope this helps!

The equation that can be used to find the number of pieces of candy Joey has is j = (315 - 18) / 3 .

Number of candies Sal has = 3(number of candies that Joey has) + 18

315 = 3(j) + 18

Where j represents the number of candies that Joey has.

Given this equation, 315 = 3(j) + 18 , we are to make j the subject of the formula. To do this, take the following steps.

Combine similar terms :

(315 - 18) = 3j

Divide both sides by j

j = (315 - 18) / 3

To learn more about linear functions, please check: https://brainly.com/question/19462599