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3 years ago

SOMEONE, PLEASE HELP FAST!!! FOR BRAINLIEST!!!!

Mathematics

1 answer:

Pani-rosa [81]3 years ago

7 0

Answer:

Volume of rectangular prism:

V1 = base x height = 4 x 6 x 12 = 288 ft3

Volume of triangular prism:

V2 = base x height = 4 x (6/2) x 6 = 72 ft3

Volume of composite prism:

V= V1 + V2 = 288 + 72 = 360 ft3

Hope this helps!

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gregori [183]

Answer:

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Plan B last 1.5 hours or 90 minutes.

Step-by-step explanation:

Let $a$ be the number of hours that the plan A last, an $b$ the number of hours of plan B. Then for the Wednesday you have:

$2a+3b=6$

And for the Thursday is:

$6a+5b=12$

Multiply the equation of Wednesday by -3:

$-6a-9b=-18$

Using the method of addition using this last equation and the equation of Thursday

$-6a-9b=-18\\6a+5b=12\\--------\\-4b=-6\\b=\frac{-6}{-4}\\b=1.5 hours$

Replacing the value of $b$ in one of the equations

$6a+5b=12\\6a+5(1.5)=12\\6a+7.5=12\\6a=12-7.5\\a=\frac{4.5}{6} \\a=0.75hours$

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3 years ago

Erika is working on solving the exponential equation 50x = 17; however, she is not quite sure where to start. Using complete sen

Liono4ka [1.6K]

Answer:

Step-by-step explanation:

Divide both sides by 50 and you'll get x=17/50

If x is the exponent than we can take the natural log of both sides.

x(ln)50=ln(17)

Then divide ln50 on both sides

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2 years ago

Please help. What is the range of f(x)=20x+4

Advocard [28]

Answer:

(−∞,∞)

Step-by-step explanation:

THe range is Infinity

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2 years ago

There are three rows of VIP seats in each section. Each row

Pavel [41]

Answer:

The answer is 576 seats

Step-by-step explanation:

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2 years ago

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TRUE STORY

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2 years ago

Read 2 more answers