Solve.Find the area of the window. If necessary, use ? ? 3.14 and round your result to the nearest tenth.
4 ft
A. 51.1 sq ft
B. 98.2 sq ft
C. 73.1 sq ft
D. 22.3 sq ft
Answer: D
Mathematics
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Find the opposite of the number.2.9
A. -2.9
B. 0
C. 
D. 2.9
Mathematics
Simplify the rational expressions.
A. 
B. 
C. 
D. 
Mathematics
Solve for the specified variable. Assume that the constants have values for which the equation has exactly one real-number solution.x = 
, for r.
A. r = 
B. r = 
C. r = 
D. r = x + y
Mathematics
Before the parachute opens, the velocity v (in meters per second) of a skydiver is given by 
, where t is time in seconds into the jump. Find the velocity after 18 seconds. Round to two decimal places.
?
A. 0.97 m/sec B. 48.63 m/sec C. 9.06 m/sec D. 45.88 m/sec E. 1.37 m/sec
Mathematics