According to the linear regression model, in 1999 the men’s world record mile run time would have been how many seconds?

Answer:

100,000

Step-by-step explanation:

Answer: 18 quarts

Step-by-step explanation:

Quantity of sparkling water and gape juice are used in proportion in  the recipe.

Let x=  quantity of sparkling water when 9 quarts of grape juice is used.

Then,

[tex]\dfrac{x}{9}=\dfrac{1\dfrac12}{\dfrac34}\\\\\Rightarrow\ =\dfrac{x}{9}=\dfrac{\dfrac32}{\dfrac34}\\\\\Rightarrow\ \dfrac{x}{9}=\dfrac{4}{2}\\\\\Rightarrow\ x= 2\times9\\\\\Rightarrow\ x=18[/tex]

Hence, 18 quarts of sparkling water is required to mix with 9 quarts of grape juice.

Answer: 1.5 bananas per sundae

Step-by-step explanation:

There was a total of 6 bananas used in making 4 sundaes.

To find the number of bananas used per sundae, you should divide the number of bananas by the number of sundaes.

= No. of bananas / No. of sundaes

= 6 / 4

= 1.5 bananas per sundae

Answer:

i need more information like how much mai biked

Step-by-step explanation:

Answer:

7. no

8.yes

9.yes

10.no

I hope this helps!

Answer:

7. no  

8. yes

9. yes

10. no

Step-by-step explanation:

We'll solve this equation:

First, let's apply the distributive property:

‎      ‏‏‎5x + 17 = 4(3x - 1)

‎      ‏‏‎5x + 17 = 12x - 4

Now, add 4 to both sides of the equation:

‎      ‏‏‎5x + 17 = 12x - 4

5x + 17 + 4 = 12x - 4 + 4

‎      ‏‏‎5x + 21 = 12x

Substract 5x from both sides:

‎  ‎     ‏‏‎5x + 21 = 12x

5x - 5x + 21 = 12x - 5x

‎      ‏‏‎‎      ‏‏‎‎   21 = 12x - 5x

‎      ‏‏‎‎      ‏‏‎‎   21 = 7x

Now, divide both sides by 7

‎      ‏‏‎‎   21 ÷ 7 = 7x ÷ 7

Therefore, x = 3.

‎      ‏‏‎‎    

Answer:

Option B. One Solution

Step-by-step explanation:

5x+17= 4(3x-1)

5x+17 = 12x-4

17+4 = 12x-5x

21. = 7x

thus, x=3 (one solution)

Answer: y = -2/5x +8

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

32+28+30 is 90 degrees which is a right angle

Answer: the the answer

35814/3600

Answer:

2 times 7, 14-9

Step-by-step explanation:

2 times 7 = 14

14-9=5

Answer:

60

Step-by-step explanation:

4/3 = x/45

45/3=15

15*4=60

x=60

Answer:

550

Step-by-step explanation:

Answer:

y = -0.25x + 2.25

Step-by-step explanation:

First, you can simplify the equation of the line it's perpendicular to (2y = 8x - 6) by dividing both sides by 2. This means you would get y = 4x - 3. From that you can conclude that the slope of that line is 4.

Lines always have a slope that is the negative reciprocal of the slope of the line they are perpendicular to, so you know the slope of the line is going to be -1/4.

So far, you have the equation y = -1/4x + b and you have to find b.

You can substitute in the point (-3, 3) so you would have 3= -1/4 * -3 + b

Solving,

3 = 3/4 + b

b = 2 and 1/4

Therefore the equation is y = -1/4x + 2 1/4 or y = -0.25x + 2.25

Answer:

It is B

Step-by-step explanation:

If you multiply 35 with the number on the left of the chart, it gives the exact number, thus it is correct

Answers:

Please read the disclaimer below.

=============================================

Explanation:

Disclaimer: The issue is that without the coordinate values, it's impossible to determine the regression line. It's not clear where some (or most) of the red points are located. Often that's why a table is needed. I would ask your teacher for clarification.

With that said, I'll still give it a shot.

---------------

Part 1

The blue regression line appears to go through the two points (0,30) and (50,50). Let's find the slope through this line

m = (y2-y1)/(x2-x1)

m = (50-30)/(50-0)

m = 20/50

m = 0.40

The y intercept is b = 30 since the blue line appears to cross the y axis at this location.

So y = mx+b turns into y = 0.40x+30

Replace x with n and replace y with b

We go from y = 0.40x+30 to b = 0.40n+30 which is the regression line.

Again this is all based on the assumptions that the blue line goes through (0,30) and (50,50).

---------------

Part 2

Assuming we have the correct regression equation, we can immediately see that each extra call costs $0.40 which is the same as 40 cents. So it's 40 cents per call. This is the slope value, which is the rate of change. Each time n goes up by 1, b goes up by 0.40

Because the regression line estimates the actual observed values, we won't always land on a red point. But the goal is to get as close as possible.

----------------

Part 3

Again assuming we have the correct regression equation, we plug in n = 34 and evaluate to determine the bill

b = 0.40*n + 30

b = 0.40*34 + 30

b = 43.60

Pete would pay $43.60 if he made 34 calls.

Answer:

you are right

Step-by-step explanation:

C=d*pi

a. for d/C, it would be d/C=1/pi

c. for pi/C, it would be pi/C=1/d

d. for pi/d, it would be I don't wanna do, but it doesn't matter cause it's wrong

therefore, C/d=pi

is correct

Answer:

1/2

if you are happy with my answer, please give brainliest :)

Step-by-step explanation:23+8+10+9=

50

23/50

About 1/2

Answer:

it will be 56

Step-by-step explanation:

maney because I am 9nyears old

Answer:

it will be 56

Step-by-step explanation:

Answer:

B. 2

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Linear means in a straight line, and 2 is not in a straight line

Answer:

26620

Step-by-step explanation:

20,000 x 10% is 2000 = 22000

22,000 x 10% is 2200 = 24200

24200 x 10% is 2420 = 26620

Answer:

22,000

Step-by-step explanation:

equations is total amount = amount x (multiplier)^years

step one: 100+10 over 100 = 1.1 which the multiplier

step two : substitute 20,000 X(1.1)^3

3 because of how may years

and step three enter on calculator and get 22,000 as the answer

Answer:

the inverse of something is a fraction

Step-by-step explanation:

If you wanna inverse something from a number do 5 = 1/5

If u wanna do fraction to a number 1/5=5

and if you have a term it would just be that term like x if you were to inverse 5x = x

Answer:

Piece A: 42 inches

Piece B: 14 inches

Step-by-step explanation:

If the pipe is 56 inches long and divided into 2 parts with a 3;1 ratio, then you would divide 56 by 4 (3;1->3+1) to get 14. 14 would be the smaller piece, then you'd multiply 14 by 3 to get 42 inches because theres 3 parts for the larger piece in the ratio of 3;1. :) the explanation is probably really weird but the answer should be correct anyways

Answer:

The Estimated weight of the puppy = 12 pounds

Actual weight of the puppy = 14 pounds

Difference in estimated weight and actual weight = 14 - 12

= 2 pounds  

⇒ [(14 - 12)*100]/14

⇒ (2*100)/14

⇒ 200/14

⇒ 14.285 %  

Answer:

2.95, 2.25 and 2.016

Step-by-step explanation: