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My name is Ann [436]
3 years ago
11

Find the surface area of the cylinder with a height of 11cm and 4cm as a base

Mathematics
2 answers:
natali 33 [55]3 years ago
8 0

Answer:

Step-by-step explanation:

I believe you meant "radius of the base is 4 cm."

The vertical sides of this cylinder have the area A = 2πr*h, where r is the radius of the base and h is the height of the cylinder.

Here, that comes out to A = 2π(4 cm)(11 cm) = 88π cm^2.

If the "surface area" is to include the top and bottom as well, add the following to 88π cm²:

2[πr²]  =  2(π[4 cm]² = 32π cm²

Area of side alone:                 88π cm²

Area of top and bottom:        32π cm²

Total surface area:               88π + 32π    cm²

Andru [333]3 years ago
5 0

I hope this helps you

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if there are 90 calories in 3/4 cuo of yogurt how man calories are in 3 cups of yogurt 30 calories 202 calories 270 calories 360
Debora [2.8K]
Hello!

To find how many calories in three cups we can use the proportion below.

\frac{calories}{cups} = \frac{90}{3/4} = \frac{c}{3}

To find our answer we can say, "How many times does 3/4 go into 3," and then multiply that number by 90 as shown below.

3÷3/4=4
90(4)=360

Just to verify, we will cross multiply and check our answer 

90(3)÷3/4
270÷3/4=360

Therefore, our answer is D) 360 calories.

I hope this helps!

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3 years ago
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NemiM [27]
8/16=1/2
You divide the numerator and denominator by 8
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Need some help please
Pie

Answer:

145

Step-by-step explanation:

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The diameter of a circle is 13 cm. What is the radius of the circle?
nikklg [1K]

Answer:

The Radius is 6.5 cm.

Step-by-step explanation:

We know that the diameter of a circle is a line that begins on one point of a circle and ends on the opposite side. We also know that the radius is a point on the circle that starts from that point and ends at the center. Therefore, the radius would be half the diameter.

13/2 = 6.5

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3 years ago
Natalie is in the business of manufacturing phones. She pays a cost of $50 per
Trava [24]

Answer:

  C = 50p +900

Step-by-step explanation:

Table: (phones, cost) = (0, 900), (1, 950), (2, 1000).

Equation: C = 900 +50p

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The fixed cost (900) is the "y-intercept" of the equation in slope-intercept form. The cost per phone (50) is the "rate of change" or slope.

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