3 years ago

Can someone help me with 21 and 22 ??

2 answers:

7 0

21. H) Subtract 4 from 9
22. D) comutative property of multiplication because we got two numbers multiplied that comuted

inna [77]3 years ago

3 0

Subtract 4 from 9 because parentheses first.
Commutative property because it just moved around

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erma4kov [3.2K]

2x-4 because I got -4+2x and it’s the same thing

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likoan [24]

What do you have to find here?

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AveGali [126]

Answer:

Step-by-step explanation:

Recall the equation for a circle:

$(x-h)^2+(y-k)^2=r^2$ , where the center is (h,k) and the radius is r.

The given equation is:

$(x+5)^2+(y+7)^2=21^2$

Another way to write this is:

$(x-(-5))^2+(y-(-7))^2=21^2$

Thus, we can see that h=-5 and k=-7.

The center is at (-5, -7).

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Ann [662]

Substitution.

Elimination.

Using a Combination of methods.

Using absolute value

I hope this helps!

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2 years ago