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SSSSS [86.1K]
4 years ago
11

These cylinders are similar. Find the surface area of the smaller cylinder. Round to the nearest tenth.

Mathematics
1 answer:
Ratling [72]4 years ago
6 0

Answer:  

Surface Area = 6.28 x 5.223 x 3 + 6.28 x 10.446 = 164 cm^2

Step-by-step explanation:

A=2πrh+2πr2

When we divide 245 by 1.5 we find 164cm^2

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A chemical reaction converts a substance Ato a substance Y. At the start of the reaction, the quantity of A present is a grams.
galben [10]

Answer:

y

Step-by-step explanation:

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3 years ago
I need help on this math question !!!!
vichka [17]

D. Although I'm not 100% sure

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3 years ago
A 20 foot ladder leaning against a wall is used to reach a window that is 17 feet above the ground. How far from the wall is the
GarryVolchara [31]

The bottom of the ladder is 10.5 feet away from the wall

Step-by-step explanation:

The given scenario forms a right triangle.

Where

The length of ladder will be the hypotenuse

The wall on which the window is situated will ebt he perpendicular and

The distance between the foot of ladder and the wall will be the base

So,

Hypotenuse = H = 20 foot

Perpendicular = P = 17 feet

Base = B = ?

Using the Pythagoras theorem

H^2=P^2+B^2\\(20)^2=(17)^2+B^2\\400=289+B^2\\400-289=B^2\\B^2=111\\Taking\ square\ root\ on\ both\ sides\\\sqrt{B^2}=\sqrt{111}\\B=10.53\\Rounding\ off\ to\ the\ nearest\ tenth\\B=10.5

The bottom of the ladder is 10.5 feet away from the wall

Keywords: Triangle, Pythagoras Theorem

Learn more about Pythagoras theorem at:

  • brainly.com/question/9532142
  • brainly.com/question/9590016

#LearnwithBrainly

8 0
3 years ago
Find angle B and angle E
Natali [406]

Answer:

x = 9, Angles are 54°

Step-by-step explanation:

First, we need to find x:

7x-9 = 5x+9

+9 +9

7x = 5x+18

-5x -5x

2x = 18

x = 9

Now, we plug our x value in to find our angles.

5(9) + 9 = 54

Angle B = 54°

7(9) - 9 = 54°

Angle E = 54°

(angles are the same due to AAA property)

6 0
3 years ago
Help and please show work!​
Wewaii [24]

Answer:

666 2/3 gallons per minute

Step-by-step explanation:

1 valve: 40,000 wps

60 seconds in 1 minute,

40,000 / 60 = 666 2/3

3 0
3 years ago
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