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quester [9]
3 years ago
9

What is the answer expand and simplify 3x-2^2

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

3x^2 - 4

Step-by-step explanation:

3x^2 - 2^2

3x^2 - 4

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Find the area of a rectangular room(in square feet) <br> that is 15 feet by 120 inches.
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Answer:

150ft^2

Step-by-step explanation:

120/12 is 10 so 10×15=150 so its 150ft^2

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An 8 by 19 ft wall has three 4 by 5 windows. the area of the entire wall [including the windows]
ollegr [7]

The area of the wall including the windows is 152ft
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A group of 5 hippos at the zoo eats a total of 2,100 pounds of food each
wolverine [178]
First, divide the total pounds of food eaten by 7 (7 days in a week).

2,100/7 = 300 pounds

Then divide this quotient by the 5 hippos.

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3 years ago
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Factor to solve <br> X^2-2x-15=0
zzz [600]

Answer:

(x+3)(x-5)

Step-by-step explanation:

find two multiples of -15 that when added together create -2

those two numbers would be -5 and +3

-5x3=-15

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4 0
3 years ago
Which expression is rational?
horrorfan [7]

Answer:

square root of 49

Step-by-step explanation:

square root of 2 is 1.41421356237

square root of 14 is 3.74165738677

square root of 49 is 7

square foot of 49 is the correct one because 6.27316543222718… keeps going and does not stop the other 2 is irrational and square root of 49 is 7 basically meaning is rational

Hope this helped! :)

May i have brainliest!

5 0
3 years ago
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