Solve:
ÚÄÄÄ ÚÄÄÄ
û-16 ð û-25 =
a. -20
b. j20
c. 20
d. 4 + j5
e. 5 + j4
a. -20
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Solve.A prime number p such that 2p + 1 is also a prime number is called a Germain prime, named after the German mathematician Sophie Germain (1776-1831), who made major contributions to number theory. Determine whether or not the prime number 53 is a Germain prime.
A. Yes B. No
Solve the problem.The formula 
gives the distance d in feet that a projectile will travel when its launch angle is ? and its initial velocity is v0 feet per second. Approximately what initial velocity in miles per hour does it take to throw a javelin 340 feet with a launch angle 43°?
A. 71.21 mi/hr B. 74.01 mi/hr C. 86.12 mi/hr D. 104.43 mi/hr
Use the given information to find the exact value of the trigonometric function.sin ? = - 
; The terminal side of ? lies in Quadrant IV.
Find cos 
.
A. - 
B. - 
C. 
D. 
Solve the problem.If a rocket is propelled upward from ground level, its height h in meters after t sec is given by h(t) = -9.8t2 + 98t. During what interval of time will the rocket be higher than 
A. 0 sec < t < 4 sec B. 0 sec < t < 6 sec C. 8 sec < t < 10 sec D. 4 sec < t < 6 sec