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Leni [432]
3 years ago
6

Evaluate 8 - m/n + p^2 when m=8, n=2, p=7

Geography
1 answer:
Temka [501]3 years ago
8 0

Answer: 53

Explanation:

8 - m/n + p^2

8 - 8/2 + 7^2

8 - 8/2 + 49

8 - 4 + 49

4 + 49

53

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Calculate the total mass of water in kg on Earth's surface from the following data: total planetary surface area: 510,066,000 km
irinina [24]

Answer:

The total mass of water in on Earth's surface is 3.61419\times 10^{22} kg.

Explanation:

Total planetary surface area = T = 510,066,000 km^2

Total land area of planet = L = 148,647,000 km^2

Total water area of planet = W

T = L + W

510,066,000 km^2=148,647,000 km^2-W

W=510,066,000 km^2-148,647,000 km^2=361,419,000 km^2

Volume = Area × Depth

Volume of water on earth = V

V= 361,419,000 km^2\times 100 km^=36,141,900,000 km^3

km^3=10^{12} L

V=36,141,900,000 km^3=36,141,900,000 \times 10^{12} L

Total mass of total water on the earth = M

Density of the water,D = 1 g/mL = 0.001 kg/0.001 L=1 kg/L

1 g - 0.001 kg

1 mL = 0.001 L

D=\frac{M}{V}

M=D\times V

M =1 kg/L\times 36,141,900,000 \times 10^{12} L=3.61419\times 10^{22} kg

The total mass of water in on Earth's surface is 3.61419\times 10^{22} kg.

4 0
4 years ago
Light reflects off the medium at a ________ angle to which it initially struck the material. pls fill in the blank for me, I can
galben [10]

Answer:

equal

Explanation:

The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray.

4 0
3 years ago
Environmental science is the study of?
defon

Answer: How to protect the environment

8 0
3 years ago
The graph shows the supply and consumption of forests when the consumption rate and population growth rate are both low. What do
Delicious77 [7]

According to the graph, the prediction on the future is that there will be c. resource depletion.

<h3>What does the graph show?</h3>

The graph shows that as time goes on, humanity will demand more and more hectares of forest.

This will lead to forests eventually being wiped out after around 700 years which points to resource depletion.

Find out more on resource depletion at brainly.com/question/18485131.

#SPJ1

6 0
2 years ago
What’s the answer?????? #12
densk [106]

Answer:

multiplying the distance

Explanation:

when you're going up the wedge, and ur pushing something u need more force. when ue pushing something down the wedge there is less force and the distance increase.

3 0
3 years ago
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