MATHEMATICS HIGH SCHOOL

Which of the following is the surface area of the right cylinder below?height 2
radius 9

A. 174 units2
B. 187 units2
C. 198 units2
D. 162 units2

Answers

Answer 1
Answer: The lateral area of a cylinder (i.e. without the bottom and top lids) is 2πrh = 2π(9)(2) = 36π

The area of the two lids is 2[π(r^2)] = 162π

The sum is: 36π + 162π = 198π

I guess the answers included π but you couldn't type it.
Answer 2
Answer:

Answer: The surface area of right cylinder is 198\pi \text{ units}^2

Step-by-step explanation:

To calculate the total surface area of cylinder, we use the formula:

\text{Total surface area of cylinder}=2\pi r(r+h)

where,

r = radius of cylinder = 9 units

h = height of the cylinder = 2 units

Putting values in above equation, we get:

\text{Total surface area of cylinder}=2\pi * 9(9+2)\n\n\text{Total surface area of cylinder}=2\pi * 9* 11\n\n\text{Total surface area of cylinder}=198\pi \text{ units}^2

Hence, the surface area of right cylinder is 198\pi \text{ units}^2

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WILL MARK BRAINLIESTtwo sides of a triangle have lengths 6 and 17 which inequalities represent the possible lengths for the third side, x?

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Step-by-step explanation:

Given the sequence 8, 16, 32, 64, ..., which expression would give the thirteenth term?

Answers

8, 16, 32, 64,…
 ×2  ×2  ×2

a_(n) = a_(1) * r^(n - 1)
a_(n) = 8 * 2^(13 - 1)
a_(n) = 8 * 2^(12)
a_(n) = 8 * 4096
a_(n) = 32768

           First Term: 8
      Second Term: 16
          Third Term: 32
        Fourth Term: 64
           Fifth Term: 128
          Sixth Term: 256
     Seventh Term: 512
       Eighth Term: 1024
         Ninth Term: 2048
        Tenth Term: 4096
   Eleventh Term: 8192
     Twelfth Term: 16384
Thirteenth Term: 32768

The\ expression\ that\ would\ give\ the\ thirteenth\ term\ of\ the\ problem\ would\ be\ the\ equation\ of\ the\ geometric\ sequence,\ which\ is\ equal\ to\ a_(n) = a_(1) * r^(n - 1).

Add. Write your answer in simplest form.
5/8+7/8

Answers

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3 A scientist takes four random samples of a population of 700 trees. Each sample isthe same size. The first sample indicates that 30% of the trees are oak, while the

second sample indicates that only 15% of the trees are oak. The third sample

indicates that 26% of the trees are oak. The fourth sample indicates that 29% of

the trees are oak. Based on the data, about how many of the 700 trees are oak?

Answers

Using proportions, it is found that about 175 trees are oak.

What is a proportion?

A proportion is a fraction of a total amount.

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Answers

Answer:

y =-x-11

Step-by-step explanation:

Slope intercept form : y=mx+b

-x-y=11\n\n-y =x +11

Multiply by -1(reverse the inequality)

-1(-y=x+11)\n\ny =-x-11

Answer:

y = - x - 11

Step-by-step explanation:

-x-y=11

+x       +x

-y=11+x

/-     /-

y=-11-x

rearrange

y = - x - 11
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