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ella [17]
3 years ago
15

B. A teacher weighed 145 pounds in 1986 and weighs 187 pounds in 2007. What was the rate of change in

Mathematics
2 answers:
mariarad [96]3 years ago
8 0

Answer:

the teacher gained 42 pounds in 21 years . Each year the teacher gained 2 pounds.

Step-by-step explanation:

187-145=42

2007-1986=21

42 divided by 21 = 2

Svetradugi [14.3K]3 years ago
4 0

Answer:

2 pounds per year.

Step-by-step explanation:

2007-1986 = 21 yrs

187-145 = 42 pounds

42 pounds /21 yrs = 2 pounds /yr

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The scatterplot that represents the monthly values of stock QRS has an r-
tankabanditka [31]

Answer:

C

Step-by-step explanation:

Because it's a negative, then we could assume that it is a negative correlation. And because it's closer to -1, it is a strong negative correlation.

3 0
2 years ago
Find the distance between (-6, -12) and (4,8) using the distance formula.
Romashka [77]

Answer:

The distance formula is 22.360679775

if you round it to the nearest tenth, then the answer is 22.4

Step-by-step explanation:

(-6, -12) and (4,8)

<u>(x2 - x1)² + (y2 - y1)²</u>

Place the x and y values

(4 - - 6)² + (8 - - 12)²

= 10² + 20²

= 100 + 400 = 500

√500 = 22.360679775

Round it to the nearest tenth, and you will get 22.4

Hope this helps!

Please mark me as the brainliest

6 0
1 year ago
Read 2 more answers
The other side is 10 yds
Vesnalui [34]
The correct answer is 900yds.
6 0
3 years ago
What is the missing angle measure?
Evgen [1.6K]

Answer:

x = 33

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the 2 angles from 180 for x

x = 180 - (90 + 57) = 180 - 147 = 33

8 0
3 years ago
65. A pizza, heated to a temperature of 400°F, is taken out of an oven and placed in a 75°F room at timet= 0 minutes. The temper
Amanda [17]

Answer:

769MIN

Step-by-step explanation:

Hello!

To solve this problem we must use the straight line equation, this equation is as follows

Y=mx+b

where

X= time

Y=Temperature

b= intercept with the y axis when x = 0, therefore y = 400

m=k= temperature decrease with respect to time=-0.325

now we replace the values ​​in the equation of the line

Y=-0.325X+400

Now we find the time it takes for the pizza to reach 150 F replacing in the equation and finding X

150=-0.325X+400

150-400=-0.325X+

X=\frac{150-400}{-0.325} =769MIN

4 0
3 years ago
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