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igor_vitrenko [27]
3 years ago
11

What's the formula to find the surface area of a cylinder ?

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0
A=2×3.14×rh+2×3.14×r² 

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What is slope intercept form?
emmainna [20.7K]

Answer:

Step-by-step explanation:

The equation of the line is written in the slope-intercept form, which is: y = mx + b, where m represents the slope and b represents the y-intercept. In our equation, y = 6x + 2, we see that the slope of the line is 6.

Hope this helps :)

5 0
1 year ago
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Solve the equation 4(2x – 1) + 8 = 4x + 24. Factor out the greatest common factor, then<br> solve.
DedPeter [7]

Answer:

5

Step-by-step explanation:

divide everything by 4

=(2x-1) +2 = x + 6

regroup

=2x = x + 5

x = 5

4 0
3 years ago
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5 – (– 3 + 4 – 2) – 3 · (2 + 5 – 4)<br> cuanto da
muminat

Answer:

-3

Step-by-step explanation:

4 0
3 years ago
Write 2/8 in simplified form
EleoNora [17]

Answer:

1/4

Step-by-step explanation:

because you basically divided by two on

7 0
3 years ago
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Both circle Q and circle R have a central angle measuring 140°. The area of circle Q's sector is 25π m2, and the area of circle
taurus [48]

Solution:

we are given that

Both circle Q and circle R have a central angle measuring 140°. The area of circle Q's sector is 25π m^2, and the area of circle R's sector is 49π m^2.

we have been asked to find the ratio of the radius of circle Q to the radius of circle R?

As we know that

Area of the sector is directly proportional to square of radius. So we can write

Area  \  \   \alpha \ \  r^2\\ \\ \Rightarrow A=kr^2\\ \\ \text{where k is some proportionality constant }\\ \\ \Rightarrow \frac{A_1}{A_2}=\frac{r_1^2}{r_2^2}\\ \\  \Rightarrow \frac{r_1^2}{r_2^2}=\frac{A_1}{A_2}\\ \\  \Rightarrow \frac{r_1^2}{r_2^2}=\frac{25 \pi}{49 \pi}\\ \\  \Rightarrow \frac{r_1}{r_2}=\sqrt{\frac{25 \pi}{49 \pi}} \\ \\  \Rightarrow \frac{r_1}{r_2}=\frac{5}{7} \\


7 0
3 years ago
Read 2 more answers
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