Evaluate the expression.72 - 5 ? 6
A. 24
B. 84
C. 19
D. 264
Answer: C
Mathematics
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Find a1, r, an, n, or Sn for the geometric sequence, as instructed.a1 = 3, n = 4, a4 = 
; Find r.
A. 2
B. 
C. 
D. - 
Mathematics
Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
Mathematics
Find the perimeter and the area of the figure.
A. perimeter: 12 in.; area: 36 sq in. B. perimeter: 24 in.; area: 36 sq in. C. perimeter: 36 in.; area: 24 sq in. D. perimeter: 24 in.; area: 144 sq in.
Mathematics
Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 60 meters. The hypotenuse is 20 meters longer than the length of the longer leg. How long is the longer leg?
A. 60 m B. 80 m C. 120 m D. 100 m
Mathematics