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3 years ago

–6x(8 + 6x) – 8(1 – 5x)

Mathematics

1 answer:

leva [86]3 years ago

7 0

Answer:

-36x² - 8x - 8

Step-by-step explanation:

Distribute 6x and -8 through the parenthesis:

-48x + -36x² - 8 + 40x

Collect the like terms:

-8x - 36x² - 8

Use the commutative property to reorder the terms:

-36x² - 8x - 8

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Three years ago, Sherman was twice as old as Clive. If Clive’s present age is c, which expression represents Sherman’s present a

iogann1982 [59]

2(c-3)=s

because you have to subtract 3 years from sherman's age first, so you need the parentheses

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3 years ago

Help ! I AM Not sure what to do

o-na [289]

The answer is (3,5)

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1 year ago

Challenge The price of Stock A at 9 A.M. was $12.91. Since then, the price has been increasing at the rate of $0.11 each hour. A

enyata [817]

Answer:

In 2 2/15 hours, the prices will be same

Step-by-step explanation:

I hope this helps :)

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2 years ago

Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds a

kirill115 [55]

Answer:

12 feet per second.

Step-by-step explanation:

Please consider the complete question.

Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds after she jumps for the bone can be represented $h(t)=-16t^2+20t$ .

What is Spot's average rate of ascent, in feet per second, from the time she jumps into the air to the time she catches the bone at t=1/2?

We will use average rate of change formula to solve our given problem.

$\text{Average rate of change}=\frac{f(b)-f(a)}{b-a}$

$\text{Average rate of change}=\frac{h(\frac{1}{2})-h(0)}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot(\frac{1}{2})^2+20\cdot \frac{1}{2}-(-16\cdot(0)^2+20\cdot (0))}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot\frac{1}{4}+10-(0)}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{-4+10}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{6}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{2\cdot 6}{1}$

$\text{Average rate of change}=12$

Therefore, Spot's average rate of ascent is 12 feet per second.

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3 years ago

Fred's boat rental charges a rental fee of $30 plus $5 per hour. Joe's boat rental charges a flat rate of $20 an hour. Set the s

zmey [24]

30 + 5h = 20h
30 = 20h - 5h
30 = 15h
30/15 = h
2 = h

at 2 hrs, they both charge the same rate...
30 + 5(2) = 30 + 10 = 40
20h = 20(2) = 40
so at 2 hrs, they both charge $ 40

8 0

2 years ago