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3 years ago

5

If the area of the rectangle shown is 150 square feet, we can use the equation 2x2 - 5x = 150 to find its dimensions. If the sol

ution to the equation is x = 10, what are the dimensions of the rectangle?

2 answers:

Serjik [45]3 years ago

7 0

X=-150 or X=-146/5 I think.

natita [175]3 years ago

7 0

Answer:

10ft×15ft

Step-by-step explanation:

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Answer:

0.05

Step-by-step explanation:

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2 years ago

You are riding a roller coaster when a shoe falls off your foot. The function y=300−16t2 represents the height y (in feet) of th

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Answer:

Time to land on 11ft is 4.25 seconds

Step-by-step explanation:

Given

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Required

Solve for t when height is 11ft

This implies that $y = 11$

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Collect Like Terms

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Take square roots of both sides (ignore negative)

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Answer:

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Step-by-step explanation:

We are given the following in the question:

Quantity, q

Selling price in dollars per yard, p

$q=f(p)$

Total revenue earned =

$R(p)=pf(p)$

f(20)=13000

This means that 13000 yards of fabric is sold when the selling price is 20 dollars per yard.

f′(20)=−550

This means that increasing the selling price by 1 dollar per yards there is a decrease in fabric sales by 550.

We have to find R'(20)

Differentiating the above expression, we have,

$R'(p) = \displaystyle\frac{d(R(p))}{dp} = \frac{d(pf(p))}{dp} = f(p) + pf'(p)$

Putting the values, we get,

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3 years ago