3 years ago

Which graph is the most appropriate to use to describe a quantity decreasing at a steady rate?

Mathematics

1 answer:

lana66690 [7]3 years ago

6 0

Answer:

option c

Step-by-step explanation:

edge 2021

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Kristin's grandparents started a savings account for her when she was born. They invested $500 in an account that pays 8% intere

Molodets [167]

Y = 500 + .08x is the correct answer

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3 years ago

An accident at an oil drilling platform is causing a circular-shaped oil slick to form. The volume of the oil slick is roughly g

Basile [38]

Answer:

$V(t)=0.0112\pi t^{2}$

Step-by-step explanation:

we have

$V(r)=0.07\pi r^{2}$ -----> equation A

$r(t)=0.4t$ -----> equation B

To find out (V of r)(t) substitute equation B in equation A

$V(r(t))=V(t)$

$V(t)=0.07\pi (0.4t)^{2}$

$V(t)=0.07\pi (0.16)t^{2}$

$V(t)=0.0112\pi t^{2}$

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3 years ago

The population is approximately 280,000 in 2006. The population grows at a rate of 7% per year. What was the population in 1990?

KonstantinChe [14]

Answer:

586,455 people

Step-by-step explanation:

im not sure

5 0

3 years ago

Jennifer has 25 coins with a total value of $4.25. The coins are quarters and nickels. How many of each does she have?

kirill115 [55]

Answer:

15 quarters, 10 nickels

Step-by-step explanation:

$q+n=25$

$0.25q+0.05n=4.25$

multiply the first equation by -0.25 and add the second equation to it

$-0.25q-0.25n=-6.25\\0.25q+0.05n=4.25$
________________
$-0.2n=-2$

$n=\frac{-2}{-0.2} =10$ has 10 nickels

$q=25-n=25-10=15$ has 15 quarters

10(.05) +15(0.25) = 0.5 + 3.75 = 4.25

Hope this helps

8 0

1 year ago

What is the slope of the line that passes through (3,-7) and (-1,1)

Anna [14]

Answer:

-2

Step-by-step explanation:

slope formula is (y2-y1)/(x2-x1)

1 - -7 / -1 - 3

8 / -4

-2

5 0

3 years ago