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zhenek [66]
3 years ago
7

What is the surface area?

Mathematics
1 answer:
ZanzabumX [31]3 years ago
3 0

The formula of the Surface Area of a cilinder:

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

r = 2 yd

h = 1 yd

Substitute:

SA=2\pi\cdot2\cdot1+2\pi\cdot2^2=4\pi+8\pi=12\pi\ yd^2

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PLEASE HELP
Andrei [34K]

Answer:

1.  Slope = 1/4  

   Point = ( 1, 1 )

2. Slope = -3

    Point = ( 3, -20 )

Step-by-step explanation:

5 0
3 years ago
The gradient of the curve is given by the equation and a point on the curve is also given. Find the equation of the curve with w
IgorC [24]

Answer:

4 x^(3/2)         + 5x -32

Step-by-step explanation:

This problem involves definite integration (anti-derivatives).

If dy/dx = 6x^(1/2) - 5, then dy = 6x^(1/2)dx - 5dx.

                                        (1/2) + 1

This integrates to y = 6x                        

                                   ----------------                      

                                      (1/2) + 1             x^(3/2)

                                                      =  6 ------------ + C

                                                                 3/2

             

or:        4 x^(3/2) + C

and the ∫5dx term integrates to 5x + C.

The overall integral is:  

4 x^(3/2) + C + 5x + C. better expressed with just one C:

4 x^(3/2)         + 5x + C

We are told that the curve represented by  this function goes thru (4, 20).

This means that when x = 4, y = 20, and this info enables us to find the value of the constant of integration C:

20 = 4 · 4^(3/2)         + 5·4 + C, or:

20  =  4  (8)           + 20 + C

Then 0 = 32 + C, and so C = -32.

The equation of the curve is thus   4 x^(3/2)         + 5x -32

                   

           

                                      (1/2 + 1)

7 0
3 years ago
What is x+y <3 (0,0)
larisa [96]
The expression is a bit invalid. You can't add variables by variables. 
3 0
3 years ago
What is 3000 x 344 +===
Doss [256]

Answer:

it equals to 1032000

Step-by-step explanation:

because 3000 x 344 = 1032000

3 0
3 years ago
Simplify (-8q^3r^4s^2)^2
koban [17]

Answer:

64q^6r^8s^4

Step-by-step explanation:

(-8q^3r^4s^2)^2

= (-8)^2 q^(3*2) r^(4*2) s^(2*2)

= 64q^6r^8s^4

3 0
3 years ago
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