3 years ago

Simplify 3 to the second power multiplied 3 to the fifth power.

Mathematics

1 answer:

kramer3 years ago

6 0

Answer:

Step-by-step explanation:

when multiplying to numbers with a power/exponent you add the powers

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Finish the factoring: (-7y+2)(5y+3)

taurus [48]

You will need to use FOIL for this, or distribute.

So you will multiply -7y and 5y, then -7y and 3
Multiply 2 and 5y, then 2 and 3
You will get: -35y²-21+10y+6

Combine like terms:
-35y²+10y-15

There you go!

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3 years ago

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pantera1 [17]

Answer:

C. the figure moves left and down

Step-by-step explanation:

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3 years ago

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What are the missing pieces to the steps? –27 = 4x2 – 24x –27 = 4(x2 – 6x) –27 + = 4(x2 – 6x + 9) 9 = 4(x – 3)2 = (x – 3)2 ± = x

Cloud [144]

I think the 4 wasn't distributed correctly. it should be one of the first steps.

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4 years ago

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Work out the area of this semicircle.Take pie to be 3.142 and give your answer to 2 decimal places 10cm

rosijanka [135]

Answer:

The area of the semi circle $A = 157.1 cm^2$

Step-by-step explanation:

Explanation:-

Given radius of circle 'r' = 10 cm

The area of the circle formula

$A = \pi (r)^{2}$

The area of the semi circle formula

$A = \frac{\pi (r)^{2} }{2}$

taking π =3.142

$A = 3.142 X \frac{(10)^2}{2}$

On calculation , we get

$A = 157.1 cm^2$

Final answer:-

The area of the semi circle $A = 157.1 cm^2$

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3 years ago

What is the first step to solving the following equation?5x –11 = 42

alexdok [17]

Answer:

add the 11 to both sides to cancel it out.

Step-by-step explanation:

so basically

5x - 11 + 11 = 42 +11

5x = 53

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3 years ago