Mathematics College

## Answers

**Answer 1**

Answer:

1. y = 0.437798+0.829539X

2. there is a significant effect

3. 7.523

4. 41.914

5. no

6. 0.8777

Step-by-step explanation:

1.

from the regression output we have

intercept = 0.437798

slope = 0.829539

the regression line would therefore be =

**y = 0.437798 + 0.829539X**

**2****.**

h0 = regression is not significant

h1: regression is significant

alpha = 0.05

p value = 0.0001

we compare p-value with alpha

**0****.****0****0****0****1****<****0****.****0****5**

**we ****therefore**** ****reject**** ****H0 ****and**** ****conclude**** ****that ****hours ****spent ****studying**** ****have ****significant**** ****effect**** ****on ****total**** ****points****.**

**3****.**

**T****o**** ****get ****standard error of estimate**:

mean sum of squared error = MSE

MSE = 56.5974

= √56.5974

= 7.523

**4****.**

points of a student who spent 50 hours studying. we calculate this from the regression line

y = 0.437798 + 0.829539X

x = 50

y = 0.437798 + 0.829539(50)

**y = 41.914**

**5**.

no I would not be comfortable using estimate regression equation to predict his point of a student spent 120 hours studying. this value is out of range of the predictor values (independent variables)

6. **to ****get ****r²**** ****(****r ****squared)**

r² = SSR/SST

SSR = 3249.72

SST = 3702.5

r² = 3249.72/3702.5

= 0.8777

7.

we are supposed to solve question 7 from question 8. but no question 8 was given. hence no solution

## Related Questions

Find (f(x+h)-f(x))/(h) for the given function.

f (x) = 5x2 - 6x + 4

### Answers

**Answer: 5h + 10x -6**

**Step-by-step explanation:**

**if we plug f(x) into the equation we get:**

[tex]\frac{[5(x+h)^2 - 6(x+h) + 4] - [5x^2 - 6x + 4]}{h}[/tex]** **

**now from here we can simplify:**

[tex]\frac{5x^2 + 5h^2 + 10xh - 6x - 6h + 4 - 5x^2 + 6x - 4}{h}[/tex]

**now add liked terms **

[tex]\frac{5h^2 + 10xh - 6h}{h}[/tex]

**cancel what we can:**

**5h + 10x - 6**

Can someone please help

Thanks

### Answers

**Answer:**

c

**Step-by-step explanation:**

I need help with this question.

### Answers

**Answer:**

I think the answer is

x= -2

y= 2

PPEASE PLEAS ILL GIVE BRAINLYEST I HAVE 5 mINS PLS SHOW UR WORK It’S QYICJ PLEASE

### Answers

Here’s the answer lol

(14, 5) , (21, 3) , (26, 8) , (33, 6) , (38, 11) , ( _____ , _____ ) , ( _____ , _____ ) , (57, 12) , (62, 8) , (69, 15) , (74, 11)

fill in the sequence

### Answers

**Answer:**

(45,9), (50, 14)

**Step-by-step explanation:**

the y-axis' pattern is subtract 2 and add 5.

the x-axis' pattern is add 7 then add 5.

So we get (45, 9) and (50, 14)

Triangle ABC is reflected across the x-axis. Whatare the coordiantes of point C?

A. (6,0)

B. (-6,-3)

C. (-6,3)

D. (6,3)

### Answers

The answer is either A or B

If you can give me a picture of the triangle ABC on the coordinate plain I could get you a definite answer

What is the cushions for each

### Answers

**Answer:**

proper information is not available in this question

help me my mannnsssss or girrrlesss

### Answers

**Answer:**

4x - 32

**Step-by-step explanation:**

What is Y+1=2/5(x+3) in standard form

### Answers

**Answer:**

x= 5y−1 over 2

**Step-by-step explanation:**

jose has 15 pencils tim has 5 times as many pencils as jose. jose wants to find out how many pencils tim has. he solves the problem two ways which two ways could jose use to close the problem

### Answers

**Answer:**

you could multiply 15 times 5 or you could add 15 five times

**Step-by-step explanation:**

evaluate 2 to the 6th power

### Answers

**Answer: 64**

**Step-by-step explanation:**

2 x 2 x 2 x 2 x 2 x 2 =64

**Answer:**

64

**Step-by-step explanation:**

2^6=2*2*2*2*2*2=4*4*4=16*4=64

simplify x^2 + 7y - 4y + 9x^2.

### Answers

**Answer:**

10x^2+3y

**Step-by-step explanation:**

Add together the x^2 and the y's, so your equation is (x^2+9x^2)+(7y-4y)=10x^2+3y.

(hope this helps :P)

At Bike Shop X it costs $2.75 per hour plus a $2.00 deposit to rent a bike. At Bike Shop Z it cost $1.75 per hour plus a $7.00 deposit to rent a bike. The total cost ,c, of renting a bike for n hours can be represented by a system of equations. Write and solve a system of equations to find how many hours you have to rent the bike for the cost to be the same.

### Answers

It’s from the hood you came and that what they make them sheeeop like a beeep you know so it 1.79

Decimal for one half

### Answers

Answer:

0.5

Step-by-step explanation:

1/2= 0.5

Hopefully, it is helpful.

1 =

b

3

− 1

b = find b

### Answers

**Answer:**

b = 2/3

**Step-by-step explanation:**

Solve for b:

1 = 3 b - 1

1 = 3 b - 1 is equivalent to 3 b - 1 = 1:

3 b - 1 = 1

Add 1 to both sides:

3 b + (1 - 1) = 1 + 1

1 - 1 = 0:

3 b = 1 + 1

1 + 1 = 2:

3 b = 2

Divide both sides of 3 b = 2 by 3:

(3 b)/3 = 2/3

3/3 = 1:

Answer: b = 2/3

Is 5h + 2 equivalent to 7h

### Answers

No, it is not. 5h + 2 does not simplify anymore. The only way it could be 7h is if it was 5h + 2h.

Find the volume of the figure shown below.

11.4 cm

10 cm

10 cm

Your answer may be exact or rounded to the nearest hundredth.

### Answers

10 cm would stay as a 10 cm

14cm would round down to a 10

write inequality of -3 < 6 add 8 to both sides

### Answers

9514 1404 393

**Answer:**

5 < 14

**Step-by-step explanation:**

It usually works to follow directions.

-3 < 6 . . . . . . write the inequality

-3 +8 < 6 +8 . . . . . add 8 to both sides

** 5 < 14 . . . . . . the simplified result**

simplify the expression. 2•36 ^-1/2 + 6^-1

### Answers

**Answer:**

7/36

**Step-by-step explanation:**

geometry proof help pls!

### Answers

**Answer:**

**Step-by-step explanation:**

**Statements Reasons**

1). WV ⊥ WX 1). Given

2). WY ⊥ XV 2). Given

3). m∠XWV = m∠XYW = 90° 3). Right angles

4). ∠X ≅ ∠X 4). Reflexive property

5). ΔVWX ~ ΔVYW 5). AA property of similarity

Kelly is organizing a barbecue. She needs bread rolls and burgers. Bread rolls are sold in packs of 20. Burgers are sold in packs of 12. Kelly buys exactly the same number of bread rolls as burgers. What is the least number of each pack that Kelly buys?

### Answers

**Answer: **She could buy **3 packs of burgers to = 60 burgers **and then **5 packs of rolls to = 60 rolls**

**Step-by-step explanation:**

Hope this helps!

A health club charges a one-time sign-up fee and a monthly membership fee. The equation y=24x+15 represents what the health club charges. Find the rate of change.

### Answers

**Answer:**

34$

**Step-by-step explanation:**

Delta math: rate of change=

run

rise

=

change in x

change in y

=

3

102

=34

The **rate of change** is given by the **slope** value in the cost function of the health club, Hence, the **rate of change** is **$24**

Given the cost function which is written in slope intercept format :

**y = 24x + 15**

The general form of the slope - intercept equation is :

**y = bx + c **

b = slope = **rate of change** in **y** per change in **x**

Therefore, comparing the expressions, the **slope** of the cost function given is **24** ; Hence, the **rate of change**.

Learn more : https://brainly.com/question/18405415

Find the area of the figure.

7 cm

4 cm

4 cm

1

10 cm

10 cm

8 cm

19 cm

area:

cm2

### Answers

**Answer:**

which figure?........

Kyle gave 2/7 of his money to his wife and spent 4/5 of the remainder. If he had $300 left, how much money did he have at first?

### Answers

**Answer:**

$5,250

**Step-by-step explanation:**

2/7x - [4/5(2/7x)] = 300

2/7x - 8/35x = 300

10/35x = 8/35x = 300

2/35x = 300

2x = 10500

x = 5250

I dance I sing I am perfect I am I am a believer that I am a discoverer. PLEASE ANSWER I'LL MARK AND BRAINLIEST

### Answers

**Answer:**

not sure if its a song or not but you do you, gg <3

**Answer:**

YAZZ You are amazing :> remind yourself everyday!!!

F(x)=3x+2 what is f(5)

### Answers

**Answer:**

17

**Step-by-step explanation:**

f(5)=3*5+2 where X is equal to 5

Triangle ABC is an equilateral triangle. Segment AD measures 18 inches.

Triangle A B C is shown. A perpendicular bisector is drawn from point A to point D on side B C. The length of A D is 18. Line A C cuts side B C into 2 equal parts.

Which statements about the diagram are correct? Check all that apply.

BD = 9 in.

AB = 36 in.

DC = 6 StartRoot 3 EndRoot in.

AC = 12 StartRoot 3 EndRoot in.

BC = 18 StartRoot 3 EndRoot in.

### Answers

**Answer: C, D**

**Step-by-step explanation:**

**Answer:**

C and D

**Step-by-step explanation:**

Edge 2021

As shift manager at a local fast food place, you are responsible for ensuring quality control. You do not want to weigh all the frozen hamburger patties that get delivered by your supplier to make sure they weigh four ounces on average, so you choose 100 patties at random. You calculate that the sample mean weight of patties is 2.6 ounces and the standard deviation of the weight of hamburger patties to be 0.4 ounces.

Required:

a. Test the hypothesis that the population mean weight of patties is equal to 4 ounces.

b. You are particularly concerned about the population weight being under 4 ounces, is there any reason for concern? Explain using the concept of a confidence interval.

### Answers

Answer:

Kindly check explanation

Step-by-step explanation:

xbar = 2.6

Sample size, n = 100

s = 0.4

Mean, μ = 4

The test statistic :

(xbar - μ) ÷ s/sqrt(n)

(2.6 - 4) ÷ 0.4/sqrt(25)

1.4 ÷ 0.08

= −17.5

Critical tvalue for 95% confidence interval :

df = n - 1 = 25 - 1 = 24

Tcritical at 0.05/2; df

Tcritical = ±2.064

Since, Tstatistic value does not fall within the Tcritical value ±2.064, we reject the Null

Using the p value from Tstatistic calculator :

P value at t = - 17.5 at 0.05 < 0.000001

Since p value is < 0.05, we reject H0.

Solve the inequality.

|5 - 2x|> 14

### Answers

**Answer:**

x < −9/2

or

x > 19/2

I hope this helps <333

Find X intercept of f(x)=2(x-4)^2+2￼

### Answers

**Step-by-step explanation:**

[tex]f(x) = 2( x - 4) ^{2} + 2 \\ f(x) = 2({x}^{2} - 8x + 16) + 2 \\ f(x) = 2 {x}^{2} - 16x + 32 + 2 \\ f(x) = 2 {x}^{2} - 16x + 34[/tex]