Simplify by using the order of operations. Round your answer to the nearest hundredth, if necessary.3.52 + 3.92
A. 54.76
B. 27.46
C. 14.8
D. 29.6
Answer: B
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Solve.Find the area of a circular flower bed whose diameter is 4016 feet. (Use ? = 3.14 as an approximate value.)
A. 50,642,723.8 ft2 B. 12,660,681 ft2 C. 12,610.24 ft2 D. 6305.12 ft2
Solve.If an earthquake measured 
on the Richter scale, what was the approximate intensity of the earthquake? The magnitude of an earthquake of intensity I is defined as 
, where Io is a minimum level for comparison.
A. 50,000,000 B. 2400 C. 63,000,000 D. 6,300,000
Solve the problem.If the price charged for a candy bar is p(x) cents, then x thousand candy bars will be sold in a certain city, where p(x) = 83 - 
. How many candy bars must be sold to maximize revenue?
A. 498 candy bars B. 996 thousand candy bars C. 996 candy bars D. 498 thousand candy bars
In 
, a sector is bounded by radii 
and 
and arc 
align="absmiddle" style="vertical-align:-4px;" />. If m
= 90° and PX = 6 m, find the exact area of the sector.
A. 9
B. 12
C. 3
D. 36