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joja [24]
3 years ago
12

What is the total surface area of the following cylinder?

Mathematics
1 answer:
lilavasa [31]3 years ago
6 0

Answer: 791.28cm^2

Step-by-step explanation:

A=2\pi rh+2\pi r^2

We have the diameter, to calculate the radius, divide by 2.

12/2=6cm

height: 15cm

Plug in the formula.

A=2(3.14)(6cm)(15cm)+2(3.14)(6cm)^2\\A=565.20cm^2+226.08cm^2\\A=791.28cm^2

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How do you do this C=2πr with π=3.14?
SashulF [63]

Answer: C=2*3.14*r

Step-by-step explanation:

You just plug in 3.14 for pi, it's pretty simple

7 0
3 years ago
Two squares are similar. The
Pepsi [2]

Answer:

The perimeter of the second square is 36 inches

Step-by-step explanation:

Given

Represent the sides of the squares with S1 and S2.

So:

S_1:S_2 = 1 : 3 --- Scale factor

P_1 =12 --- perimeter of the first

Required

Calculate P2, the perimeter of the second

Represent the ratios of the perimeter:

Scale = P_1 : P_2

Substitute 12 for P1

Scale = 12 : P_2

Equate both scale factors

12 : P_2 = 1:3

Convert to fraction

\frac{12}{P_2} = \frac{1}{3}

Cross multiply

P_2 = 12 * 3

P_2 = 36

6 0
2 years ago
The table represents the function f (x) = 2 x + 1.
Salsk061 [2.6K]

Answer:

C

Step-by-step explanation:

In the table, we are given the points [ (-3, -5), (2, y), (5, 11), (8, 17) ]

We are given the equation [ f(x) = 2x + 1 ] where 2 = slope and 1 = y intercept.

We need to find the value of "y".

y2-y1/x2-x1

y-(-5)/2-(-3) = 2

y+5/5 = 2

y = 5

Best of Luck!

5 0
3 years ago
Read 2 more answers
What is the factored form of 30x2 - 25x -30?
Setler79 [48]

Answer:

Step-by-step explanation:

Here are some steps to help you

Step 1

30x2 - 25x -30  Factoring

Step 2

30x2 - 25x -30  factor out the equation

5(3x+2)(2x-3)

Step 3

5(3x+2)(2x-3)  Check by simplifying

When you check, you will get the question back

Answer

5(3x+2)(2x-3)

Hope this helps

6 0
3 years ago
7+3x−12x=3x+17+3x−12x=3x+1 solve for X
mariarad [96]
X is equal to -11/6 or -1.8333333333..................................
4 0
3 years ago
Read 2 more answers
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