Use the compound interest formula to compute the total amount accumulated and the interest earned.
$5000 for 3 years at 7% compounded semiannually.
The amount in the account is $ 6146.2
(Do not round until the final answer. Then round to the nearest cent as needed.)
The interest earned is $ 6,152.
(Do not round until the final answer. Then round to the nearest cent as needed.)

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.