Whats the answer please help marking brainliest TWO ANSWERS

10 answers
Question:

Whats the answer please help marking brainliest TWO ANSWERS

[tex]Whats the answer please help marking brainliest TWO ANSWERS[/tex]


Answers

236, 237 is the answer to this problem. Hope I helped

B.

Step-by-step explanation:

(4,3) (1,8)

Y^2=8 Y^1=3

X^2=1 X^1=4

(8-3)/(1-4)=

=-5/3

C

120

Step-by-step explanation:

Divide this figure by 3 and it is the same

360/3 =120

It has 120 angle of rotation

120

Step-by-step explanation:

just divide it by 3

263,267

Step-by-step explanation:

473/2 is 263.5 and so just add .5 to one and subtract .5 from the other

5/-3

Step-by-step explanation:

We are given two points we can find the slope using

m = (y2-y1)/(x2-x1)

   = (8-3)/(1-4)

   = 5/ -3

  = -5/3

a. 45 N. / b. 0.08 m/s^2. / c. 102 N

F = ma

F = 15(3)

F = 45 newtons

F/m = a

20/250 = a

0.08 m/s^2 = a

R = ma

R =1.5(68)

102 N

answer 2

Step-by-step explanation:

Part A:

The surface area of a cylinder is given by

A=  6πr² if h= 2r

Part B:

Total Cost of covering the cylinder = Rate *2πrh + rate*2πr²

Cost of covering only the side = Rate *2πrh

Step-by-step explanation:

Part A:

The surface area of a cylinder is given by

A= 2πrh + 2πr²

Where h= height and radius = r

But we have the height twice as radius so h= 2r

So putting h= 2r we get

A= 2πr(2r) + 2πr²

A= 4πr² + 2πr²= 2πr²(2+1) = 2πr²(3)= 6πr²

Part B:

Cost = Rate * area of the wall + rate * area of the top and bottom

Cost = Rate *2πrh + rate*2πr²

Where area of the top and bottom= πr² +πr² =2 πr²

and area of the side = 2πrh

Multiplying both with the rate and then adding would give the total cost of materials needed to cover the outside of the cylinder and from top and bottom as well.

If  you do not need to cover top and bottom then the expression would be

Cost of covering only the side = Rate *2πrh

Part C:

Already done above.

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