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blagie [28]
3 years ago
9

What is 7a to the power of 2 - 2a to the power of 2

Mathematics
2 answers:
harkovskaia [24]3 years ago
8 0

Answer:

5a to the power of 2 ofc

Step-by-step explanation:

Natasha2012 [34]3 years ago
5 0

Answer:

5a²

Step-by-step explanation:

It is 5a² because 7a² and 2a² are like terms, so we are able to subtract them. If we subtract 7-2 we get 5. It is the same thing, 7a²-2a² is equal to 5a²

Hope this helps!

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After a hurricane, the Johnsons had 6 inches of water in their basement that was being pumped out at a rate of 1 inch per hour.
iren2701 [21]

Answer:

6>5

Step-by-step explanation:

I know it is true

4 0
3 years ago
Find the area and perimeter of the shaded figure
puteri [66]

Answer:

Area - 6 unit^2   Perimeter - 10 units

Step-by-step explanation:

The shaded figure is 3 units long and 2 units high.

L = 3  W = 2

A = LW

A = 3 x 2 = 6 unit^2

Perimeter = 2L + 2W

P = 2(3) + 2(2)

P = 6 + 4 = 10 units

6 0
3 years ago
Help me please thanks
Natalka [10]

Answer: All real numbers

Step-by-step explanation: If you plug in any number, it will work. 4(a+3) = 12+4a. a=-3  0=0


6 0
3 years ago
Read 2 more answers
Graph the system by using technology. What is the y-coordinate of the solution?
son4ous [18]
Take second equation here, 
2x + 9 = -12
2x = -12 - 9
2x = -21
Multiply by 2, 
4x = -42

Now, substitute the vaue of 4x in 1st equation, 
-42 - y = 2
-y = 2 + 42
y = -44

In short, Your Answer would be -44

Hope this helps!
3 0
3 years ago
Please help meeeeeeee
strojnjashka [21]

Answer:

Volume of the cylinder = 602.88 square centimeters

Step-by-step explanation:

Given that:

Radius of cylinder = 4 cm

Height of cylinder = 12 cm

Volume of a cylinder is given by the following formula;

Volume = πr²h

Putting π = 3.14, r = 4 and h = 12 in the formula

Volume = 3.14 * (4)² * 12

Volume = 3.14 * 16 * 12

Volume = 602.88 square centimeters

Hence,

Volume of the cylinder = 602.88 square centimeters

5 0
3 years ago
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