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Andreas93 [3]
4 years ago
14

What is the surface area

Mathematics
1 answer:
nexus9112 [7]4 years ago
5 0

Answer:

A 1759 sq. units

Step-by-step explanation:

to find the surface area of a closed cylinder the formula is

2πr² + πdh

r = radius = 10

d = diameter = 10 + 10 = 20

2 x 3.14 x 10² + 3.14 x 20 x 18

628.3 + 1130.94 = 1759.24

ans = 1759

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kipiarov [429]

Answer:

x = 2, y = 4

Step-by-step explanation:

x + \frac{3}{4} y = 5 ( multiply through by 4 to clear the fraction )

4x + 3y = 20 → (1)

x - \frac{1}{2} y = 0 ( multiply through by 2 to clear the fraction )

2x - y = 0 → (2)

Multiplying (2) by 3 and adding to (1) will eliminate y

6x - 3y = 0 → (3)

Add (1) and (3) term by term to eliminate y

10x + 0 = 20

10x = 20 ( divide both sides by 10 )

x = 2

Substitute x = 2 into either of the 2 equations and solve for y

Substituting into (1)

4(2) + 3y = 20

8 + 3y = 20 ( subtract 8 from both sides )

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Solution is x = 2, y = 4

7 0
3 years ago
Describe the transformation.
Lesechka [4]

Answer:

g(x) = 1/3 (x - 12) .. vertical compression with factor 1/3 from f(x-4)

Step-by-step explanation:

*f(x) = x - 8  ... horizontal translation right 8 units from parent function f(x)=x

f(x-4) = (x-4) - 8 = x - 12 .... horizontal translation right 4 units from f(x)=x-8

g(x) = 1/3 (x - 12) .. vertical compression with factor 1/3 from f(x-4)

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3 years ago
Can someone help me ‼️
vazorg [7]

Answer:

A) 6

Step-by-step explanation:

The angle 12x is the same angle as the one below 108 degrees. They are supplementary angles so they add up to 180 degrees. 180-108 = 72, 12x = 72 divide each side by 12, x = 6 :)

8 0
3 years ago
Stefan is measuring the angles of a triangle. He measures the first angle and gets a measure of 80° What does he know about the
zlopas [31]
The answer would be B, since the other two just have to equal 100.
6 0
4 years ago
Read 2 more answers
1. A school gym has a width of 270 ft. Which of the following is equivalent to 270 ft?
yan [13]

Answer:

It should be 90

Step-by-step explanation:

Because 270 divided by 3 is 90

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3 years ago
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