Evaluate the expression for the given values. If necessary, round to the nearest tenth.
x = 4, y = 6
A. 120
B. 20
C. 18
D. 8
Answer: B
Mathematics
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Solve the problem.A pulley of radius 25 cm rotates 7 times in 4 sec. Find the angular speed of the pulley.
A. 
radians per sec
B. 
radians per sec
C. 
radian per sec
D. 
radian per sec
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics
Find the first term and the common ratio of the geometric sequence.
, 
, 
, 
, . . .
A. a1 = 
, r = 5
B. a1 = 
, r = 
C. a1 = 
, r = 
D. a1 = 
, r = 
Mathematics
Decide if the given number is a solution to the given equation.2x = 12; 8
A. No B. Yes
Mathematics