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kitttimothy55
02.09.2019 •
Mathematics
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 |||
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Ответ:
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
Ответ:
b = d -wn
Step-by-step explanation:
b = d -wn
Here, n is an independent variable and b is an dependent variable in an linear relation, and d and w are two constant values.
Hope it will find you well.