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Zinaida [17]
3 years ago
12

Which equation represents the data shown in the table below?

Mathematics
1 answer:
gayaneshka [121]3 years ago
8 0
I can’t really read this but I think it’s b
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The radius of Earth is about 3960 miles. The radius of the moon is about 1080 miles. a. Find the surface area of Earth and the m
Molodets [167]

A) The formula for surface area of a sphere is A = 4*PI*r^2

using 3.14 for PI:

Surface area for Earth = 4 * 3.14 x 3960^2 = 196,960,896 miles^2

Surface area of the moon: 4 * 3.14 * 1080^2 = 14,649,984 miles^2

B)Divide the Surface of the Earth by the moon:

196,960,896 / 14,649,984 = 13.44

The Earths surface is 13.4 times larger than the moon.

C) Multiply the surface of the Earth by 70%:

196,960,896 * 0.70 = 137,872,627.2 million square miles of water.

4 0
3 years ago
Free
Mekhanik [1.2K]

Answer:

the answer is 2 you add one and the other one and it makes 2

Step-by-step explanation:

3 0
3 years ago
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Solve by the linear combination method (with or without multiplication) <br> 2x+3y= -17, 5x+2y = -4
Amiraneli [1.4K]
2x+3y= -17 
5x+2y= -4
You must cancel either the x or y out to solve so i'm going to cancel the x. 
-5(2x+3y= -17)
2(5x+2y= -4)
This simplifies to: 
-15x -15y=85
15x+4y= -8
The -15x and 15x cancel out leaving you: 
-15y=85 
4y= -8
You add them top numbers by the bottom and get: 
-11y=77
Then divide by -11 to get y by its self.
y= -7
Now that you know what y is just plug it in to either original problem. I will use the second one. 
5x + 2(-7) = -4
5x -14 = -4
5x = 10 
x = 2
So the answer is (2,-7) or x=2 and y=-7
6 0
3 years ago
Read 2 more answers
in the figure given alongside, AB is the diameter of circle with centre O. If &lt;COD=50°, find the size of &lt;CED. ​
Ksju [112]

Answer:

50

Step-by-step explanation:

code in parm so the angle o is equal to e

that is a property of the parm

5 0
2 years ago
A triangular pyramid has lateral faces with bases of 6 meters and heights of 9 meters. The area of the base of the pyramid is 15
charle [14.2K]
Bases+faces=surface area
15.6+81=96.6
Because 1/2*6*9=27*3=81
4 0
3 years ago
Read 2 more answers
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