3 years ago

Help please ASAP PLEASE

Mathematics

2 answers:

vaieri [72.5K]3 years ago

4 0

Answer is B. All u have to do is add them by combining like terms

meriva3 years ago

3 0

Add the two equations together and combine like terms

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Approximate, in feet, the circumference of a circle with radius = 6 ft. (Round your answer to one decimal place.)

Viktor [21]

Answer:

37.7

Step-by-step explanation:

Circumference of circle =2pir

I took pi=3.14

C=2xpix6=37.7square ft

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3 years ago

In the formula, V = LWH, if L = 28, and W and H are equal, and V = 252, what is W?

BabaBlast [244]

Answer:

$W=3\ units$

Step-by-step explanation:

we have

$V=LWH$ ----> equation A

$W=H$ ---> equation B

substitute equation B in equation A

$V=LW(W)$

$V=LW^2$ ----> equation C

we have

$V=252\ units^3\\L=28\ units$

substitute in the equation C

$252=(28)W^2$

solve for W

$W^2=252/(28)$

$W^2=9$

$W=3\ units$

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3 years ago

A store uses the expression –2p + 50 to model the number of backpacks it sells per day, where the price, p, can be anywhere from

Rus_ich [418]

Revenue = price * number of backpacks
number of backpacks = -2p + 50

p = 9 ; -2(9) + 50 = -18 + 50 = 32
revenue = 9 * 32 = 288

p = 12 ; -2(12) + 50 = -24 + 50 = 26
revenue = 12 * 26 = 312

<u>p = 12.50 ; -2(12.50) + 50 = -25 + 50 = 25</u>
<u>revenue = 12.50 * 25 = 312.50</u> GIVES THE MAXIMUM REVENUE

p = 15 ; -2(15) + 50 = -30 + 50 = 20
revenue = 15 * 20 = 300

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4 years ago

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