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nordsb [41]
3 years ago
14

How much of earth's surface is covered by water,including both salt and fresh water?

Mathematics
1 answer:
Crank3 years ago
7 0

Answer:

About 71% of Earth's surface is covered in water.

Step-by-step explanation:

About 97% of Earth's water is salt water.

About 3% of Earth's water is fresh water.

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What does each variable in the Slope-Intercept Form equation represent?
Virty [35]
Y represent the y axis m represents the rate of change x represents the x axis b represents the total
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3 years ago
Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. B = 15° C = 113° b = 49
VMariaS [17]

Answer:

  A = 52°, a = 149.2, c = 174.3

Step-by-step explanation:

Technology is useful for this. Many graphing calculators can solve triangles for you. The attachment shows a phone app that does this, too.

___

The Law of Sines can give you the value of c, so you can choose the correct answer from those offered.

  c = sin(C)·b/sin(B) = sin(113°)·49/sin(15°) ≈ 174.271 ≈ 174.3 . . . . . third choice

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A warehouse platform is 10 meters long and 3 meters wide.
Aleks [24]

Answer:

6meters wide

Step-by-step explanation:

10×3=30 area

10×y=60

60÷10=6

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During their first round of golf, Imani was 7 strokes over par and Peter was 8 strokes below par.
ser-zykov [4K]

Answer:

imani=+7

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Step-by-step explanation:

8 0
2 years ago
A cone with radius 2 and height 9 has its radius tripled. How many times greater is the volume of the larger cone than the small
SpyIntel [72]

Answer:

When increasing the radius 3 times the volume increases 9 times and when it is reduced to a third the volume decreases 9 times

Step-by-step explanation:

We have that the formula for the volume of a cone is:

Vc = pi * (r ^ 2) * h

We first calculate the original volume, where the radius is 2 and the height is 9, replacing:

Vc = 3.14 * (2 ^ 2) * 9

Vc = 113.04

Now if the radius is tripled it would be: 2 * 3 = 6, the radius would be 6, replacing:

Vc = 3.14 * (6 ^ 2) * 9

Vc = 1017.36

If we compare:

1017.36 / 113.04 = 9

This means that when the radius is tripled, the volume increases 9 times.

When if re reduces to a third the radius would be: 2/3, replacing:

Vc = 3.14 * ((2/3) ^ 2) * 9

Vc = 12.56

113.04 / 12.56 = 9

Which means that by reducing it to a third the volume becomes 9 times smaller.

6 0
3 years ago
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