A linear regression equation is computed for a sample of n = 13 pairs of X and Y scores. For the analysis of regression testing the significance of the equation, what are the df values for the F-ratio?

Answer:

A senior citizen costs $8

Step-by-step explanation:

Represent senior citizens with S and children with C.

The first day is represented as:

[tex]3S + C = 38[/tex]

The second day is represented as:

[tex]3S + 2C = 52[/tex]

Required

Solve for C and S

Make C the subject in the first equation

[tex]C = 38 - 3S[/tex]

Substitute 38 - 3S for C in the second equation

[tex]3S + 2(38 - 3S) = 52[/tex]

[tex]3S + 76 - 6S = 52[/tex]

Collect Like Terms

[tex]3S - 6S = 52 - 76[/tex]

[tex]- 3S = -24[/tex]

Divide through by -3

[tex]S = 8[/tex]

Recall that: [tex]C = 38 - 3S[/tex]

[tex]C = 38 - 3 * 8[/tex]

[tex]C = 38 - 24[/tex]

[tex]C = 14[/tex]

Hence, a senior citizen costs $8

Answer:

1. x = 3

2. x = 8

3. x = 5

4. x = 8

Step-by-step explanation:

1. 18 = 6x

divide both sides by 6

x = 3

2. x + 7= 15

subtract 7 from both sides

x = 8

3. 2x - 2 = 8

add 2 to both sides

2x = 10

divide 10 by 2

x = 5

4. -1 + x = 7

add 1 to both sides

x = 8

Answer:54

Step-by-step explanation:

Answer:

for this i will sue my best friend desmos

Step-by-step explanation:

if u need step by step u go down 5 and 2 is the same thing as [tex]\frac{2}{1}[/tex]. the formula i used was [tex]\frac{rise}{run}[/tex]. which means you would "rise" 2 and "run" 1.

hope this helps lol :)

Answer:

11

Step-by-step explanation:

Because you put the four into the equation like this: f(x)= 2(4)+3

And 2 times 4 equals 8

And 8 plus 3 equals 11

Have a great day!

Answer:

-0.00925925926

Step-by-step explanation:

calculator lol

Answer:

-4/3

Step-by-step explanation:

-5/6:9/10=-5/6 x 10/9= - 12/9=-4/3

Answer:

Step-by-step explanation:

Right triangle

Answer:

good luck bro lol

Step-by-step explanation:

Answer:

2. is right i think

4. is true i think hope this helps!

Step-by-step explanation:

i think

Answer:

7 1/3

Step-by-step explanation:

Answer:

C) (-4, 4]

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

From the graph we see that our y-values span from -4 to 4. When y = -4, it is a open dot, meaning it is exclusive. When y = 4, it is a closed dot, meaning it is inclusive. Therefore, our range is:

(-4, 4] or -4 < y ≤ 4

Answer:

-4,4

Step-by-step explanation:

Answer:

i thing maybe is A or C

Step-by-step explanation:

divide second equation by -3

3x+2y=1

other equatin is

3x+2y=1

since same equation, they are same line and lines are infinite so infinite solutions is answe

Answer:

No solution

Step-by-step explanation:

PEMDAS = distribute first.

9x+99=9x+3

Subtract 9x from both sides

99=3

Impossible so no solution.

Hope this helps you!

#Team Rainbows

The fifth term in the sequence would be C.

Answer:

70 ounces

Step-by-step explanation:

We can solve the weight of 35 candy bars by first finding the weight of one and multiplying by 35.

If 13 candy bars each weigh 26 ounces, one will weigh 2. We can write this out as shown:

13x = 26

x = 2

Now we simply multiply by 35 to get the total weight of 35 candy bars:

35x = 35(2) = 70

Answer:

x=15

Step-by-step explanation:

srry if I'm wrong =(

Examples to help:

2a + 4      (Unlike terms cannot be simplified)

4a + 3b    (Unlike terms cannot be simplified)

6a – 3a = 3a

8b – 8b = 0

5a – 3      (Unlike terms cannot be simplified)

6a – 4b    (Unlike terms cannot be simplified)

These are not the awnsers they are just examples

Answer: the answer

we use the formula 1/2 .b .h

Step-by-step explanation:

the answer is 1,134, we substitute the t to 9 for each number, for example 4(9) 7(9)

4(9)= 36

7(9)=63

now we find the half of our bottom number which is 4=36

1/2 36= 18

so now we have 18x63=1,134

so our answer is 1,134

The area of the triangle is 1134 m²

What is the area of Triangle?

A triangle is a plane figure or polygon with three sides and three angles.

A Triangle has three vertices and the sum of the interior angles add up to 180°

Let the Triangle be ΔABC , such that

∠A + ∠B + ∠C = 180°

The area of the triangle = ( 1/2 ) x Length x Base

Given data ,

The value of t = 9 m

Let the base of the triangle be b = 4t

                                                       = 4 x 9

                                                       = 36 m

Let the height of the triangle be h = 7t

                                                         = 7 x 9

                                                         = 63 m

Now , the area of the triangle = ( 1/2 ) x Length x Base

So , substituting the values , we get

Area of the Triangle = ( 1/2 ) x 36 x 63

                                 = 18 x 63 m²

                                 = 1134 m²

Therefore , the area is 1134 m²

Hence , the area of the triangle is 1134 m²

To learn more about area of triangle click :

https://brainly.com/question/20124564

#SPJ5

Answer:

Never mind its D :)

A.P.E.X

Step-by-step explanation:

Answer:

A roll of ribbon holds 6.75 meters. A craft club buys 21 rolls.

How many meters of ribbon did the club buy?

What is the total cost if the ribbon sells for $2 per meter?

Step-by-step explanation:

Answer:

I think the answer will be c. 1.1 hours

Answer:

8 liters

Step-by-step explanation:

because after pouring 2 liters bucket was full so we wiil minus 2 from 10

Answer:

8 + x = 10

x. = 10 - 8

x. = 2 liters

Answer:

the third one

Step-by-step explanation:

Laying in the silence

Waiting for the sirens

Signs, any signs I'm alive still

I don't wanna lose it

I'm not getting through this

Hey, should I pray? should I pray

To myself? To a God?

To a saviour who can

Unbreak the broken

Unsay these spoken words

Find hope in the hopeless

Pull me out of the train wreck

Unburn the ashes

Unchain the reactions, I'm not ready to die, not yet

Pull me out of the train wreck

Pull me out, pull me out, pull me out

Pull me out, pull me out

Underneath our bad blood

We still got a sanctum, home

Still a home, still a home here

It's not too late to build it back

'Cause a one-in-a-million chance

Is still a chance, still a chance

And I would take those odds

Unbreak the broken

Unsay these spoken words

Find hope in the hopeless

Pull me out of the train wreck

Unburn the ashes

Unchain the reactions, I'm not ready to die, not yet

Pull me out the train wreck

Pull me out, pull me out, pull me out

Pull me out, pull me out, pull me out

You can say what you like 'cause see, I would die for you

I, I'm down on my knees and I need you to be my God

Be my help, be a savior who can

Unbreak the broken

Unsay these reckless words (find hope in the hopeless)

Pull me out of the train wreck

Unburn the ashes

Unchain the reactions, I'm not ready to die, not yet

Pull me out of the train wreck

Pull me out, pull me out, pull me out

Pull me out, pull me out, pull me out

Answer: I think it is random sampling

Step-by-step explanation:

Answer:

The first subscription ($29.88 for 12 issues. A .5 cent difference.

Step-by-step explanation:

29.88/12 = $2.49

15.24/6 = $2.54

The first subscription is cheaper.

Answer:

C

Step-by-step explanation:

It is C because I can plot all those points and they are still on the blue line. If you don't believe me, plug them in to y=-3/2x+2, (-4,8 plugged in would look like this 8=-3/2(-4)+2 just plug the x and y coordinates in) and they will be correct.

Hope this helps plz hit the crown:D

Answer:

B

X can be any real number, there are a lot of solutions for y = -3/2x+2 so the answer is not C or D

for a given x,y can only be y=-3/2*x+2 not any value y so the answer is not A

Since for a given x,y can only be y=-3/2*x+2 the solutions will be ~x,y = -3/2*x+2) or ~x, -3/2*x+2~ for all real numbers

Hope I helped

Answer:

14 combinations.

Step-by-step explanation:

If there are 7 different flavors and two types of cones, just mutiply each value. 7*2=14. Boom.

Answer:

[tex]\sqrt{28[/tex]

Step-by-step explanation:

a^2 + b^2 = c^2.

if you draw out the triangle, you can substitute numbers into an equation.

6^2 + b^2 = 8^2

36 + b^2 = 64

b^2 = 64 - 36

b^2 = 28

b = [tex]\sqrt{28}[/tex]

Answer:

B

Step-by-step explanation:

First off, we see that x ≥ -2. That little horizontal line right under the > sign indicates that x is "greater than or equal to" -2. Because we want to include -2 in the solution set, the dot on the number line at -2 should be shaded in.

This already eliminates A and D.

Now, we're left to choose between B and C.

Well, we know that x is greater than or equal to -2, so possible values of x should be numbers that are more positive than -2, or that point in the positive direction. That's exactly what B illustrates, so that's our answer.

Answer:

i would help but i am very bad at math

Step-by-step explanation:

i’m at sorry