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alukav5142 [94]
3 years ago
11

Find the volume of the rectangular prism. geometry hw plz help

Mathematics
1 answer:
liq [111]3 years ago
4 0

Answer:

189 cm^3

Step-by-step explanation:

7 times 9 times 3=189

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Patricia wishes to have a rectangular-shaped garden in her backyard. she has 70 ft of fencing material with which to enclose her
Scilla [17]
For this problem, let x be the width and y be the length of the rectangle. We use these variable to make an equation from the perimeter.

Perimeter = 2*Length + 2*WIdth
Perimeter = 2y + 2x
70 = 2y + 2x

The area of a rectangle is equal to the product of x and y. Since we want the equation in terms of x only, let's find y in terms of x.

y = 35 - x

Hence, the formula for area is:

Area = xy
Area = x(35 -x)
Area = 35x - x² 
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Ariel takes 3 pages of notes during each hour of class. In all, how many hours will Ariel
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7 0
3 years ago
The value of a $3000 computer decreases about 30% each year. write a function for the computers value V(t)
den301095 [7]

Answer:

Function for given situation is : V(t)=3000(0.70)^t

Value of computer after 4 years = $720.3.

Step-by-step explanation:

Given that the value of a $3000 computer decreases about 30% each year. Now we need to write a function for the computers value V(t). then we need to find about how much will the computer be worth in 4 years.

It clearly says that value decreases so that means function represents decay.

For decay we use formula:

A=P(1-r)^t

where P=initial value = $3000,

r= rate of decrease =30% = 0.30

t= number of years

A=V(t) = future value

so the required function is V(t)=3000(1-0.30)^t

or V(t)=3000(0.70)^t

Now plug t=4 years to get the value of computer after 4 years.

V(4)=3000(0.70)^4

V(4)=720.3

Hence final answer is $720.3.

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3 years ago
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