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yuradex [85]
3 years ago
15

The power,

Mathematics
1 answer:
Tom [10]3 years ago
7 0

Answer:

30

Step-by-step explanation:

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find the surface areas of the larger cone and the smaller cone in terms of pi. compare the surface areas using a percent. (the m
serious [3.7K]

ANSWER :

Surface area of larger cone : 24π units^2

Surface area of smaller cone : 6π units^2

The surface area of the smaller cone is 25% of that of the larger cone.

EXPLANATION :

From the given problem,

AB = 3 is the radius of the larger cone and the slanted height is BC = 5

DE = 1.5 is the radius of the smaller cone and the slanted height is EC = 2.5

Recall the surface area of the cone :

A=\pi r^2+\pi rL

where r = radius and L = slanted height.

For the larger cone, r = 3 and L = 5

\begin{gathered} A=\pi(3)^2+\pi(3)(5) \\ A=24\pi \end{gathered}

For the smaller cone, r = 1.5 and L = 2.5

\begin{gathered} A=\pi(1.5)^2+\pi(1.5)(2.5) \\ A=6\pi \end{gathered}

Comparing the surface areas :

The area of the smaller cone compared to the larger cone is :

\begin{gathered} \frac{smaller}{larger}\times100=\frac{6\pi}{24\pi}\times100 \\  \\ =25\% \end{gathered}

3 0
1 year ago
Solve for x<br> simple geometry
Evgen [1.6K]

Step-by-step explanation:

2x - 10 + 4x + 16 = 180 \\  \\ 4x - 2x + 16 + 10 = 180 \\  \\ 2x = 180 - 26 \\  \\ 2x = 154 \\  \\ x =  \frac{154}{2}  \\  \\ x = 77

4 0
3 years ago
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What is the value of x in the equation-2/9 x =2/5?
erik [133]

Answer: x = 9/5  or x = 1 4/5


Step-by-step explanation:

2/9 x = 2/5

2/9 * 9/2 * x = 2/5 * 9/2

x = 2/5 * 9/2

x = 9/5 = 1 4/5

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3 years ago
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18) 5x + 4y= -30<br> 3x-9y= -18
murzikaleks [220]
1) If it is a function it equals x=6
2) If this one is also a function it would be x= -6

Please give a little more information so I can help you more!!!
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2 years ago
David is playing basketball and makes 3 of his 5 shots. What is the experimental probability he will make his next shot?
Talja [164]

Answer:

We have to divide 3/5 which is 0.6 or 60% chance

Step-by-step explanation:

6 0
3 years ago
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