Guided Problem Solving Water covers approximately 70% of Earth’s surface. The diameter of Earth is about 13,000 km. Find the approximate area of Earth that is covered by water. What is the formula for the surface area of a sphere?
What is the surface area of Earth?
What is 70% of Earth’s surface area?For the pair of similar solids, find the value of the variable. Show your work.

x = 3 ± √(5+y)

51840000 cm 2

step-by-step explanation:

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

3.07*10^-4

move the decimal 4 places to the left

.000307