The planet Mars could be a future destination for the U.S. space program. Assume that Mars is a perfect sphere. Its surface area is about 145 million square kilometers. What is the radius of Mars at its equator? Round to the hundreds place. ||| Answer choices:
A) 4,500 km
B) 2,200 km
C) 5,000 km
D) 3,400 km |||
Answers
Answer 1
Answer:
surface area of a sphere is 4 times pi timers radius^2
aprox pi=3.14
so surface area=145,000,000
145,000,000=4 times 3.14 times rdaius^2
145,000,000=12.56 times radius^2
divide both sdies by 12.56
11544585.987=r^2
square root both sides
3397.73=radius
round to the hundreds
3397 rounded to the hundreds
3400
the answer is D 3,4000 km
aprox pi=3.14
so surface area=145,000,000
145,000,000=4 times 3.14 times rdaius^2
145,000,000=12.56 times radius^2
divide both sdies by 12.56
11544585.987=r^2
square root both sides
3397.73=radius
round to the hundreds
3397 rounded to the hundreds
3400
the answer is D 3,4000 km
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ft2
Answers
A = pi * r^2
R = D / 2
R = 7 / 2
R = 3.5
A = 3.14 * 3.5^2
A = 3.14 * 12.25
A = 38.465
Divide it by 2 since its a semi-circle:
38.465 / 2 = 19.2325
So about 19 square feet.
R = D / 2
R = 7 / 2
R = 3.5
A = 3.14 * 3.5^2
A = 3.14 * 12.25
A = 38.465
Divide it by 2 since its a semi-circle:
38.465 / 2 = 19.2325
So about 19 square feet.
A = pi * r^2
A = 3.14 * 3.5^2
A = 38.465
38.465/2 = 19.2325 square feet of semicircle
A = 3.14 * 3.5^2
A = 38.465
38.465/2 = 19.2325 square feet of semicircle
Answers
The answer is a nonagon which has 9 sides which fits your description
Answers
=> The answer is -8.
Answer:
-8
Step-by-step explanation:
I believe it is -8
first you 2(-2) - 4
then you -4 -4= -8
Hope that was helpful.
Answers
I'm pretty sure you're just solving for x. For example, in 26. You have:
x/18 = 4.5
You multiply both sides by 18 to get the x by itself
x = 4.5 • 18
You simplify this
x = 81
x/18 = 4.5
You multiply both sides by 18 to get the x by itself
x = 4.5 • 18
You simplify this
x = 81
24. x= 15.625
26. x= 81
28. x= 980
30. x=2
26. x= 81
28. x= 980
30. x=2
Answers
The LCD of 3/10 and -4/15 is 30.
Answers
Well, I think you meant 'construct' and not 'contruct', but if you did mean 'contruct', then I can't help you. However, to construct a triangle all you need to do is use 3 straight line segments and connect them to form a point at each end. It should look something like this: Δ
to contruct a triangle you have to first draw a slanted triangle. then draw a slanted triangle for the right side. the draw a straight line at the bottom
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