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gizmo_the_mogwai [7]
3 years ago
5

I NEED HELP ON THIS ASAP!! GIVING 75 POINTS TO WHOEVER CAN HELP ME WITH THIS!!!

Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

288pi

904.3

1648.5

33493.3

Step-by-step explanation:

1.

volume = 6^2 * 8 * pi = 288pi

= 904.32

2.

5^2*21*3.14 = 1648.5

3.

4/3 * 20^3 * 3.14 = 33493.3

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A refrigerator costs $580 a year to run. A family purchases a new one for $1200 that will save them 22% annually in energy costs
NeTakaya

Answer:

It will take nine years and four months for the refrigerator to pay for itself.

Step-by-step explanation:

The new refrigerator which costs $1200, saves the family 22% annually in energy cost.

Since the old refrigerator costs $580 to run, we want to determine how many years it will take for 22% of $580 per year to make $1200.

22% of $580

= 580 × 0.22

= 127.6

That is, it saved then $127.6 per year.

Now,

$1200/127.6

≈ 9.4

Which means, it will take 9 years and 4 months for the refrigerator to pay for itself.

7 0
3 years ago
If f(x)= x+4/x, g(x) = x-2, and h(x)= 4x-1, what is (fohog)
MrRa [10]
The answer is d (fohog)= 4x-5/4x-9
5 0
3 years ago
Find the zeros of the polinomial function and state the multiplicity of each: f(x)=5(x+7)^2(x-7)3
Kruka [31]

Answer:

X=7

Step-by-step explanation:

6 0
3 years ago
The lithospheric plates move an average of ____. (1 point) 5 inches per year 50 inches per year 5 centimeters per year 50 centim
Assoli18 [71]
J get answer on this way:
1 inches =2,54 centimeters,
5 inches=12,7 centimeters,
50 inches=127 centimeters,
average= 12,7/4+127/4+5/4+50/40=48,67 centimeters
4 0
3 years ago
What is the measure of m&lt;3<br>A. 58 degrees<br>B. 122 degrees<br>C. 116 degrees<br>D. 64 degrees​
Firdavs [7]

Hello!

\large\boxed{\text{ D. 64 degrees}}

Angles in a triangle sum up to 180°, so:

180° = 58° + 58° + m∠3

Combine and subtract:

180° = 116° + m∠3

64° = m∠3

Thus, the answer is D.

5 0
3 years ago
Read 2 more answers
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