Solve the problem.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 44 sec
B. 22 sec
C. 11 sec
D. 33 sec
Answer: B
Mathematics
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Solve the proportion.
= 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Write the answer in scientific notation.(5.26 × 10-4)(5.35 × 10-2)
A. 2.81 × 108 B. 2.8 × 10-5 C. 2.81 × 10-5 D. 2.8 × 108
Mathematics
Graph the equation by hand.y = -2x - 1
A. 
B. 
C. 
D. 
Mathematics
Find the requested vector.w = 3i - 5j - kFind a vector orthogonal to both w and j + k.
A. 4i - 8j - 4k B. 4i + 3j - 3k C. -4i - 3j + 3k D. 3i - 3j - 4k
Mathematics