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3 years ago

10

Stephanie just redecorated her bedroom. She wants to paint her door green but needs to know the surface area of the door to see

if she has enough paint.
What is the surface area of the door?

1 answer:

Alona [7]3 years ago

3 0

Answer:The surface area of the door is 33,680

Step-by-step explanation:

The answer is correct.

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What are the coordinates of the midpoint of the line segment with the endpoints (2,-5) and (8,3)

Papessa [141]

Midpoint Formula: $(\frac{x_2+x_1}{2} ,\frac{y_2+y_1}{2} )$

Plug the coordinates into the midpoint formula and solve as such:

$(\frac{2+8}{2} ,\frac{-5+3}{2} )\\\\(\frac{10}{2} ,\frac{-2}{2} )\\\\(5,-1)$

<u>Your midpoint is (5,-1).</u>

7 0

2 years ago

THE perimeter of a television is 34 inches. 10 inches wide .how tall is it

sergejj [24]

Answer:

ok so the top and bottom are 10 inches so added together thats 20 inches

so we know their is 14 left we divide by to to get 7

so the tv is 7 tell

Hope This Helps!!!

7 0

2 years ago

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Each lenght is in metres Calculate DC

Gnom [1K]

Step-by-step explanation:

ED is greater than BC

the line from B to ED ^ (which i drew ) the point it touches ED name it X. so EX will be 2 ( ED-BC)(6-4).

then u have a triangle. EX, XB and EB.

you have length of EX(2) and u have hypotenuse. so u can calculate XB using Pythagoras theorem.

15.1²=2²+XB²

15.1²-2²=XB²

224.01=XB²

XB=14.97

since XB and DC are parallel ( a rectangle is forming XBCD) so DC is also 14.97

6 0

3 years ago

A water tank is in the shape of a right circular cylinder with a height of 20 feet and a volume 320π of cubic feet. What is the

8090 [49]

To solve for radius use the volume formula and solve for r.

V = πr²h
320π = πr²(20)
320π/π = 20r²
320 = 20r²
320/20 = r²
16 = r²
√16 = r
4 = r

Answer is D. 4 feet.

Hope this helps :)

7 0

3 years ago

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Btw the answer has to be in fraction form if it’s a decimal then we will need to convert it into a fraction please help me

Misha Larkins [42]

Answer:

217 = 217/100 = 2.17

Step-by-step explanation:

6 0

2 years ago

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