Determine which fractions are proper.
, 
, 
, 
, 
A. 
, 
, 
, 
B. 
, 
C. 
, 
, 
, 
, 
D. 
, 
, 
Answer: B
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Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceA spring gun at ground level fires a tennis ball at an angle of 51°. The ball lands 11 m away. What was the ball's initial speed? Round your answer to the nearest tenth.
A. 11.8 m/sec B. 10.5 m/sec C. 110.2 m/sec D. 3.4 m/sec
Determine and list all the prime numbers in the given range.between 60 and 80
A. 61, 67, 71, 73, 79 B. 61, 63, 67, 71, 73, 79 C. 61, 63, 67, 73, 79 D. 61, 67, 73, 79
Multiply. Change any mixed number to an improper fraction before multiplying.1
? 
A. 
B. 
C. 1
D. 1