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Nostrana [21]
3 years ago
7

Pls help me, if you get it right I will give you Brainlist!​

Mathematics
1 answer:
Bad White [126]3 years ago
4 0

Answer:

B. 31.4

Step-by-step explanation:

● you use the equation to find the circumstance of a circle so 2(pi)r.

● plug in the numbers into the equation 2(3.14)(5)

● evaluate. 2(15.70) = 31.4

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A sphere has a radius of 2x + 5. Which polynomial in standard form best describes the total surface area of the sphere? Use the
faust18 [17]
Start with the given formula for the surface area of a sphere.

S = 4 \pi r^2

Now substitute 2x + 5 in for r, the radius.
Then simplify the expression and write it in standard form.

S = 4 \pi (2x + 5)^2

S = 4 \pi (4x^2 + 20x + 25)

S = 16 \pi x^2 + 80 \pi x + 100 \pi
5 0
3 years ago
Pls help this is due in a little bit I don't wanna failllll
Fittoniya [83]
The answer is 8 3/4. Hope this helps
6 0
3 years ago
What percentage of the actual salary are the actual total expenses?
Setler79 [48]

Answer:

95.97%

Step-by-step explanation:

Observing the table we have

The actual salary is $3,600 -----> This amount represent the 100%

The actual total expenses are $3,455

using proportion

Find out what percentage of the actual salary are the actual total expenses

\frac{100}{3,600}=\frac{x}{3,455}\\ \\ x=100*3,455/3,600\\ \\ x=95.97\%

7 0
3 years ago
The question is, "Find the volume of the bodies given in the figures below, which have a hole along their entire length." How do
aniked [119]

Answer:

1782 cm³

Step-by-step explanation:

First, you measure the volume of the cuboid as a whole which is length x breadth x height, 9 x 12 x 18 = 1944 cm³. Then measure the volume occupied by the space, 3 x 3 x 18 since the hole runs along the entire length = 162 cm³.

Then you subtract the volume occupied by the hole from the volume of the cuboid in total, 1944 - 162 = 1782 cm³

4 0
3 years ago
((16 - (4/2))^2) × 3 =
VARVARA [1.3K]

Answer:

588

Step-by-step explanation:

((16 - (4/2))^2) × 3      Simplify the inner parentheses

((16 - 2)^2) x 3     Solve inner parentheses again

((14)^2) x 3        Solve exponents

196 x 3      Multiply

588

7 0
3 years ago
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