3 years ago

Which relation is a function?

Mathematics

1 answer:

zloy xaker [14]3 years ago

3 0

<span>{(–1, 3), (5, 3), (–6, 7), (9, 0)} is the correct answer.
I hope this helped!

</span>

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A company rents water tanks shaped like a cylinders. Each tank has a diameter of 12 feet and a height of 3 feet. The cost is $2

12345 [234]

Answer:

$\$678.58$

Step-by-step explanation:

step 1

<u>Find the volume of the tank</u>

we know that

The volume of a cylinder (water tank) is equal to

$V=\pi r^{2}h$

in this problem we have

$r=12/2=6\ ft$ -----> the radius is half the diameter

$h=3\ ft$

substitute

$V=\pi (6^{2})(3)=339.29\ ft^{3}$

step 2

Find the cost

$339.29\ ft^{3}*2\frac{\$}{ft^{3}}=\$678.58$

3 0

3 years ago

The lions won 16 games last year. This year the lions won 20 games. What is the percent increase in the number of games the lion

lora16 [44]

Do 20/16 and that is your answer 1.25 = 125%

6 0

3 years ago

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The regular price of a winter coat is $65.50. It is on sale for $52.40. what is the percent decrease of the winter coat

marishachu [46]

I believe the percent decrease is 20%
as when you multiply 65.5 by 20%
it gives you 13.1
when you minus 13.1 from 65.50
it gives you $52.4

6 0

3 years ago

Help, need answer. do not need to be worked out

miv72 [106K]

Answer:

B 98

Step-by-step explanation:

4*7=28 times 3 = 84

3.5*4=14

84+14=98

Hope this helps! :)

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2 years ago

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the zero of the quadratic polynomial x^2+99x+127 are a both positive b both negative c one +ve one-ve d both equal. please help

Paha777 [63]

Step-by-step explanation:

By Descrates' Rule of Signs,

x² + 99x + 127 changes sign 0 times.

Hence it has 0 positive roots.

Since the discriminant b² - 4ac is also positive, there are 2 real distinct roots.

Hence both the roots are negative. (B)

7 0

3 years ago

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