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Artyom0805 [142]
2 years ago
15

What is the surface area of the cylinder with height 2 yd and radius 3 yd? Round your answer to the nearest thousandth.

Mathematics
1 answer:
olasank [31]2 years ago
3 0
<h2>Given :</h2>

  • height (h) = 2 yd

  • radius (r) = 3 yd

<h2>Solution :</h2>

\boxed{ \mathrm{Surface \:  Area = 2\pi r(h +r )}}

  • 2 \times 3.14 \times 3 \times (3 + 2)

  • 18.84 \times 5

  • \boxed{\mathrm{94.2 \: yd {}^{2} }}

_____________________________

\mathrm{ \#TeeNForeveR}

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If a = − 65 and b = 8, the product of a x b models which rule for multiplying integers? What is the product?
DedPeter [7]

Given, a = -65 and b = 8.

We have to find multiplication of them.

a is negative and b is positive. When we multiply them, we know that the multiplication of positive and negative is negative. That means (+)(-) = -.

So (a)(b) = (-65)(8)

= (-)(+)(65)(8) = - (65)(8) = -520

So we have got the required product.

Multiplication of a and b = -520.

The correct option is option C.

4 0
3 years ago
Read 2 more answers
Which trigonometric function would be used to find the length of this triangle's hypotenuse?
drek231 [11]
You could use sin(25)=12/H
solve for H.
use pythagorean thm to doubke check answer
3 0
3 years ago
The average marks of the first 10 students are 17 and that of the next 15 students is 18. find the mean of 25 students?
Ray Of Light [21]

Answer:

The mean of 25 students is 17.6

Step-by-step explanation:

The formula of the mean (average) is mean (average) = \frac{S}{N} , where S is the sum of the data, and N is the number of the data

∵ The average marks of the first 10 students are 17

- That means the mean is 17 and the number of students is 10

∴ Average = 17

∴ N = 10

∵ Average = \frac{S}{N}

- Substitute average by 17 and N by 10

∴ 17 = \frac{S}{10}

- Multiply both sides by 10

∴ 170 = S

∴ The sum of the marks of the first 10 students is 170

∵ The average of the next 15 students is 18

∴ Average = 18

∴ N = 15

- Substitute average by 18 and N by 15

∴ 18 = \frac{S}{15}

- Multiply both sides by 15

∴ 270 = S

∴ The sum of the marks of the next 15 students is 270

Now to find the mean of 25 students and the two sums and divide the answer by 25

∵ S = 170 + 270

∴ S = 440

∵ N = 25

∴ Mean = \frac{440}{25}

∴ Mean = 17.6

The mean of 25 students is 17.6

3 0
3 years ago
Ming says that 0.24 &gt; 1/4 because 0.24 = 2/4. Which best explains Ming's error?
Iteru [2.4K]
Because 0.24 = 24/100 and 1/4= 25/100 and 0.24 = 24/100 and 2/4/ 50/100=2
and so she missed calcuated and so its wrong.

the correct answer is 0.24<2/4 then 0.24=/2/4 

wrong symbol

4 0
3 years ago
Read 2 more answers
If 6×2 + 6y2 = 13xy, what is the ratio of x to y?
barxatty [35]

Answer:

Since 6X2 + 6Y2 = 13 xy

-- 6X2 / XY + 6Y2/XY =13

---> 6 X/Y + 6 Y/X =13

    6a + 6/a =13

--->  6a2  + 6 =13a

---> 6a2 -13a +6 =0

--->  6a2 -9a - 4a +6 =0

---> (2a-3) (3a-2) =0

2a-3 = 0

a= 3/2  

So the Ratio will be = 3:2

4 0
3 years ago
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