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3 years ago

9

Maggie says that if the expression was 12÷3 to the 2nd power, you would devide begore simplifying 3 to the 2nd power. Is she rig

ht?

1 answer:

Levart [38]3 years ago

4 0

Answer:

No

Step-by-step explanation:

She is not right. You must simplify 3² first.

In the Order of Operations, exponents come before division.

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The diameter of a circle is 16 kilometers. Find the area of the circle.

Elden [556K]

The diameter of a circle is 16 kilometers. Then the area of the circle is $201.062 \mathrm{km}^{2}$

<u>Solution:</u>

Given that , the diameter of a circle is 16 kilometers

We have to find the area of the circle .

Radius is half of diameter.

$\begin{array}{l}{\text { diameter }=2 \times \text { radius } \rightarrow \text { radius }=\frac{\text {diameter}}{2}} \\\\ {\rightarrow \text { radius }=\frac{16}{2} \rightarrow \text { radius }=8 \text { kilometers. }}\end{array}$

<em><u>The area of circle is given as:</u></em>

$\begin{array}{l}{\text { area of a circle }=\pi \times r^2 \\ {\text { Area of a circle }=\pi \times 8^{2}=\pi \times 64=64 \times 3.14=201.062}\end{array}$

Hence, the area of the circle is 201.062 $km^2$

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3 years ago

There are four children in the Velez family. Alano is 1 and 1/2 times as tall as Lupe, and 6 inches taller than Olivia. Nelia is

balu736 [363]

Step-by-step explanation:

If you think about Nelia's age you can see that Olivia is 54 inches

Alano is 6 inches tall than Olivia which equals 60.

Then you would do 60 x 1 then x 30 to get Alano's height

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3 years ago

Please help me with this it’s hard

alina1380 [7]

It is mostly likely D or B but I think it’s D

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3 years ago

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- Trapezoid

The measures of three angles of a quadrilateral are 70, 125, and 89 degrees. Find the measure of the fourth one.

》The measure of the fourth one is 36°.

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3 years ago

19. The bases of a trapezoid are 8 and 22 and the trapezoid's area is 135. Find the height

julia-pushkina [17]

Answer: 9

Step-by-step explanation:

A=(a+b)/2 *h

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135/15= h

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3 years ago

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