Multiple Choice
Solve the problem.
-The range r of a projectile is given by where v is the initial velocity and
is the angle of elevation. If r is to be 4000 ft and v = 1000 ft/sec, what must the angle of elevation be? Give your answer in degrees to the nearest hundredth.
A) 7.35°
B) 86.32°
C) 3.68°
D) 5.15°
Correct Answer:

Verified
Correct Answer:
Verified
Q568: Use identities to simplify the expression.<br>-<img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8458/.jpg"
Q569: Find the exact value, given that sin
Q570: Determine whether the positive or negative sign
Q571: Use an identity to write the expression
Q572: Prove the identity.<br>-cos 2y = <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8458/.jpg"
Q574: Find all angles in degrees that satisfy
Q575: Find all values of x in the
Q576: Use an identity to find the exact
Q577: Find the exact value of the product.<br>-sin
Q578: Prove the identity.<br>-<img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8458/.jpg" alt="Prove the identity.