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OLEGan [10]
3 years ago
8

I need help with this I've been trying to solve it for over half an hour.

Mathematics
1 answer:
Alina [70]3 years ago
4 0

Answer:

659.4 cm^2

Step-by-step explanation:

The area of the curved surface of the cone = πrL

=  π*7*16

= 3.14 * 112

= 351.68 cm^2,

Surface area of the hemisphere = 2 π r^2

= 2*3.14*7^2

= 307.72 cm^2.

Total area = 351.68 + 307.72

= 659.4 cm^2.

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Which expression is equivalent to -5(m - 3)?<br> -5(-3 + m)<br> 15m - 5<br> -5(-3m)<br> -3(m - 5)
Zepler [3.9K]

Answer:

the first one

Step-by-step explanation:

The first equation is -5m+15

and the first one is 15-5m

Which is basically the same thing.

Glad to help

6 0
3 years ago
Tyrone claims that the first step to simplify this expression
ser-zykov [4K]

Answer:

1/(m^4*n^2

Step-by-step explanation:

The given expression is

(m^2*n^-3)/(m^6*n^-1)

Tyrone's approach.

Raising the expression to the 3rd power will not help. It will make the expression more complicated.

Alisha's approach.

(m^2*n^-2)/(m^6*n^-1)

= m^(2-6)*n^(-3+1)

= m^-4*n^-2

= 1/(m^4*n^2)

Alisha's approach will simplify the expression to 1/(m^4*n^2

4 0
3 years ago
What is 4 times 4 to the second power
adelina 88 [10]

Answer:

Assuming it is (4x4)^2, it is 64.

Step-by-step explanation:

The 4x4 part can basically add 1 to the exponent because you are multiplying a number by itself, and 4^3 is 64.

7 0
3 years ago
12 (5x-1) = 7x (2x +2)
murzikaleks [220]
60x - 12 = 14x^2 + 14x

Subtract 60x & Combine

-12 = 14x^2+14x-60x
-12= 14x^2-46x
Add 12
0= 14x^2-46x-14
7 0
3 years ago
Read 2 more answers
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The expected value is to get either a $5 bill or a $10 bill because of it has more of it's kind in the wallet.
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