3 years ago

What expression is equivalent to 121x2-64y

1 answer:

6 0

A is equivalent, as multiplying 2 negatives would produce a positive. Multiplying a positive and a negative get you a negative.

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Lubov Fominskaja [6]

Answer:

(B) 9π in²

Step-by-step explanation:

I’m going to assume that by 6 inches you meant 6π inches.

If the circumference of a circle is 6π inches, then it’s radius will be half of 6 (because the circumference of a circle is $2\pi r$ ).

$6\div2=3$

So the radius is 3.

Now that we know the radius, we can find the area by using the equation $\pi r^2$ .

$\pi 3^2\\\pi9\\9\pi$

Hope this helped!

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The number 6 came up 7 times out of a total of 40 trials.

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