Solve the problem.A projectile is fired upward from the ground with an initial velocity of 400 feet per second. Neglecting air resistance, the height of the projectile at any time t can be described by the polynomial function P(t) = -16t2 + 400t. Find the height of the projectile at t = 9 seconds.
A. 3456 ft
B. 2404 ft
C. 2304 ft
D. 3600 ft
Answer: C
Mathematics
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Evaluate and simplify completely. Write your answer as a mixed number if possible.15
- 
A. 13
B. 14
C. 15
D. 14
Mathematics
Establish the identity.
= 
What will be an ideal response?
Mathematics
Set up this problem in terms of 
etc. Do not compute the answer.A club has 30 sophomores and 41 freshmen. How many ways can they select a president, vice-president, secretary, and a committee of five if the officers must be sophomores and the committee freshmen?
What will be an ideal response?
Mathematics
Determine whether the pair of triangles is congruent by the SSS property.
A. Yes B. No
Mathematics