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Diano4ka-milaya [45]
3 years ago
10

1 & 2) what are the surface areas? please explain.

Mathematics
2 answers:
mote1985 [20]3 years ago
8 0
To find the surface area of a cylinder, use the formula SA = 2(pi)(radius^2) + 2(pi)(radius)(height).

So now, plug in what you know.

SA = 2(3.14)(5^2) + 2(3.14)(5)(9)
SA = (6.28)(25) + (6.28)(45)
SA = 157 + 282.6
SA = 439.6 square cm

439.6 square cm is your surface area
Sunny_sXe [5.5K]3 years ago
7 0
To find the surface area of a cylinder, use the formula SA = 2(pi)(radius^2) + 2(pi)(radius)(height).

So now, plug in what you know.

SA = 2(3.14)(5^2) + 2(3.14)(5)(9)
SA = (6.28)(25) + (6.28)(45)
SA = 157 + 282.6
SA = 439.6 square cm

<span>439.6 square cm is your surface area

Hope this helps.</span>
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In an equation like that, y would double into 2y. But just keep in mind that what happens to one side must happen to another.
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Devin is investigating the relationship between the temperature in degrees Fahrenheit and the number of gallons sold at a lemona
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find the smallest number by which 339 must be multiplied so that the product is a perfect cube. also find the cube root of the p
Murljashka [212]

Answer:

<em>The smallest number is 114921 and the cube root of the result is 339</em>

Step-by-step explanation:

The number 339 can be factored as:

339 = 3 * 113

Both factors are prime, thus to produce a perfect cube, we must multiply by each factor to the power of 2, that is:

3^2*113^2=114921

When we multiply 339 by 114921 we get 38958219, a perfect cube which cube root is 339.

Thus, the smallest number is 114921 and the cube root of the result is 339

4 0
3 years ago
Louise wants to visit El Paso San Diego Columbus Los Angeles Jacksonville San Antonio Austin and Chicago. If she decides to visi
MakcuM [25]
There are eight cities on the list.

The number of groups of 2 is (8·7)/2 = 28
The number of groups of 3 is (8·7·6)/(3!) = 56
The number of groups of 4 is (8·7·6·5)/(4!) = 70
The number of groups of 5 is (8·7·6·5·4)/(5!) = 56
The number of groups of 6 is (8·7·6·5·4·3)/(6!) = 28
The number of groups of 7 is (8·7·6·5·4·3·2)/(7!) = 8

So there are (28+56+70+56+28+8) = 246 ways to visit "some" of them.

There's only one way to visit "all" of them, and
there's only one way to visit "none" of them.

So, all together, Louise has 248 travel options.
If she decides to visit Chicago, I will show her a good time. 
8 0
3 years ago
According to the complex conjugates theorem, if 5-i5 − i is a root of a function what else is a root?
Ad libitum [116K]

Answer:

5 + i

Step-by-step explanation:

The complex conjugates theorem states that if (a + ib) is a root of a polynomial equation then the complex conjugate (a - ib) will also be its root.

Now, in our case (5 - i) is a root of a polynomial.

The complex number (5 - i) has conjugate and it is (5 + i).

Therefore, (5 + i) will also be a root of the same polynomial. (Answer)

8 0
3 years ago
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