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3 years ago

12

The elevation at ground level is 0 feet. An elevator starts 90 feet below ground level. After traveling for 15 seconds, the elev

ator is 20 feet below ground level. Which statement describes the elevator's rate of change in elevation during this 15-second interval?

1 answer:

kramer3 years ago

4 0

Answer:

Step-by-step explanation:

i believe the answer is 7.33333333333 feet per second

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If your truck gets 22 highway miles per gallon and has a 25 gallon gas tank, how many miles should you be able to drive on a ful

Degger [83]

Answer:

550 should be correct

Step-by-step explanation:

do 22 times 25

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3 years ago

Read 2 more answers

If the number of bacteria in a colony doubles every 210 minutes and the population is currently 8,000 bacteria, what will the po

marin [14]

Answer:

in 630 minutes, the population of the bacteria will 64,000

Step-by-step explanation:

current population of the bacteria = 8,000

and this population doubles every 210 minutes

0 (minute) ------------------------ 8,000 bacteria

210 + 0 (210 minutes) -------------------- 2 x 8,000 = 16,000 bacteria

210 + 210 ( 420 minutes) -------------------- 2 x 16,000 = 32,000 bacteria

420 + 210 (630 minutes) -------------------- 2 x 32,000 = 64,000 bacteria

Therefore, in 630 minutes, the population of the bacteria will 64,000

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4 years ago

Which statement shows two polynomials 4x+6 and 2x^2-8x demonstrating the closure property when multiplied?

melisa1 [442]

The correct answer for the given mathematical question above would be option A. The statement that shows two polynomials 4x + 6 and 2x^2-8x demonstrating the closure property when multiplied is that, 8x^3-20x^2-48x is a polynomial. The answer is option A for the given reason: <span>(4x+6)(2x^2 -8x)= 8x^3 -20x^2 -48x</span>

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3 years ago

What are 2 real life slope problems?

Scilla [17]

Umm no you need to do your own work and do not be asking for answers
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4 years ago

Find the slope of the line that passes through (4,-5) and (-2,9)

stiks02 [169]

Answer:

C) -7/3

Step-by-step explanation:

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

m=(9-(-5))/(-2-4)=(9+5)/-6=14/-6

simplify -14/6 to -7/3

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3 years ago