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oksian1 [2.3K]
3 years ago
7

A right cylinder has a radius of 3 and a height of 12. What is its surface area?

Mathematics
1 answer:
shepuryov [24]3 years ago
8 0

Answer:

Surface Area = 283

Step-by-step explanation:

Radius = 3

Height = 12

Formula for suface area is SA= 2πrh+2πr^2

let "r" be for radius

let "h" be for height

SA=2*π*3*12+2*π*3^2

SA=282.74

round to the nearest ones spot and that will make the surface area = 283

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Mr Doyle mowed 2/7 of his lawn. His son mode 1/3 of it. Who made most of the lawn? How much of the lawn still needs to be mowed?
CaHeK987 [17]

Answer:

His son mowed most of it and 8/21 of it still needs to be done.

Step-by-step explanation:

Trust me

Rate 5 stars mark as brainliest and press thancks plz!

4 0
3 years ago
How do i write an equation in point-slope form for a horizontal line that passes through(4, –2)??
givi [52]

Answer:

y = -2

Step-by-step explanation:

Given

Horizontal Line

(x_1,y_1) = (4,-2)

Required

Determine the equation

The equation is calculated using:

y - y_1 =m(x-x_1)

Where

m = slope

Because the line is a horizontal line, then:

m = 0

Substitute 0 for m and values for x1 and y1 in y - y_1 =m(x-x_1)

y - (-2) = 0(x -4)

y +2 = 0(x -4)

y +2 = 0

Subtract 2 from both sides

y +2-2 = 0-2

y = -2

Hence, the equation is: y = -2

5 0
3 years ago
Bees are one of the fastest insects on Earth. They can fly 22 miles in 2 hours, and 55 miles in 5 hours. Write an expression to
sineoko [7]
Miles in 2 hours = 22 
Rate of distance = 22/2
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So miles in h hours = 11h

Miles in 4 hours = 11 * 4
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Answer is
11h , 44 miles
3 0
3 years ago
These tables represent an exponential function. Find the average rate of
Varvara68 [4.7K]

Answer:

Since, we are given table for x and y values

and table for average rate of changes

we can see the pattern of average rate of change

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but we have to find

average rate of change for 7 to 8

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average rate of change for 7 to 8 is 3*3( average rate of change for 5 to 6)

so, we can plug value

average rate of change for 7 to 8 is 3*3*486

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so, option-D...........Answer

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Eric is told by his doctor that he needs to lose 15 pounds. If Eric now weights 285 pounds,then by what percentage should Eric w
tatuchka [14]

Answer:

5.26%

Step-by-step explanation:

15/285=x/100. 15 is the amount of weight he wants to lose. x=5.26%

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3 years ago
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