Solve the problem.A projectile is fired with an initial velocity of 600 feet per second at an angle of 45° with the horizontal. In how many seconds will the projectile strike the ground? (Round your answer to the nearest tenth of a second.)
A. 23.1 sec
B. 31.3 sec
C. 26.5 sec
D. 34.6 sec
Answer: C
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The Henry is a unit of:
a. Capacitance b. Inductance c. Resistance d. Reactance e. Power
Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
Find the first term and the common difference for the arithmetic sequence. Round approximations to the nearest hundredth.S4 = - 38, a4 = -17
A. a1 = -2, d = -8.5 B. a1 = -2, d = -5 C. a1 = 49, d = -5 D. a1 = 49, d = -8.5
Solve.An ice cream cone with a 8-centimeter diameter and 12-centimeter depth is filled exactly level with the top of the cone. Approximate how much ice cream (in cubic centimeters) is in the cone. Use 
for ?.
A. 804
cu cm
B. 2413
cu cm
C. 201
cu cm
D. 603
cu cm