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3 years ago

-2²-3(-2)+7 I think it’s 17 but idk

Mathematics

1 answer:

Semmy [17]3 years ago

3 0

Answer:

−2^2−(3)(−2)+7

=−4−(3)(−2)+7

=−4−(−6)+7

=2+7

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Find the volume of each ball. use the formula. where v is the volume and r is the radius. record the volume in table A of your s

pochemuha

Answer:

The volume of tennis ball = 38.808 $cm^{3}$ .

Volume of golf ball = 33.523 $cm^{3}$ .

Step-by-step explanation:

Given: The radius of the tennis ball is 2.1cm and the radius of thr golf ball is 2.0cm. the formula is V=4πr(to the 3rd power) /3 .

To find: Volume of tennis ball and golf ball .

Formula used: Volume = $\frac{4 π r^{3} }{3}$ .

pi(π) = $\frac{22}{7}$ .

Explanation : We are given that

Radius of the tennis ball = 2.1 cm

radius of the golf ball =2.0 cm.

We need to find the volume of each ball

So , plugging the given values of radius in above formula

Volume of the tennis = $\frac{4*22(2.1)^{3} }{3*7}$

On simplification we get, volume of tennis ball = 38.808 $cm^{3}$

Volume of the golf ball= $\frac{4*22(2.0)^{3} }{3*7}$

On simplification we get, volume of golf ball = 33.523 $cm^{3}$

Therefore , The volume of tennis ball = 38.808 $cm^{3}$ .

Volume of golf ball = 33.523 $cm^{3}$ .

7 0

3 years ago

Read 2 more answers

Is 2 3/4 <, >, or = to 2.75%

lesya692 [45]

<span>2 3/4 = 2.75

so

</span>2 3/4 = 2.75%

6 0

3 years ago

(15 − 3) ÷ (2 + 1) × (8 − 6)

Law Incorporation [45]

Step-by-step explanation:

= (15 − 3) ÷ (2 + 1) × (8 − 6)

BODMAS rule

= (12) ÷ (3) × (2)

= (12/3) × (2)

= 4 × 2

= 8

Hope this helps you. Do mark me as brainliest.

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3 years ago

Which of the following triangles is an obtuse triangle?

Nikolay [14]

Answer:

First triangle

Step-by-step explanation:

First triangle is the obtuse triangle.

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3 years ago

Janet must paint her outdoor circular tabletop because it has rusted. The diameter of the table

Margarita [4]

Answer:

12.56 ft²

Step-by-step explanation:

<u>The area of the tabletop:</u>

A = πr² = πd²/4 = 3.14*4²/4 = 12.56 ft²

4 0

3 years ago

Read 2 more answers