Add or subtract. Assume all variables represent positive real numbers.
+ 4
+ 4
A. 57
B. 8
C. 57
D. 8
Answer: A
Mathematics
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Solve triangle ABC. If necessary, round the answer to the nearest tenth.b = 4, c = 6, A = 85°
A. a = 6.9, B = 35.3°, C = 59.7° B. a = 6.9, B = 59.7°, C = 35.3° C. a = 5.9, B = 59.7°, C = 35.3° D. a = 7.9, B = 35.3°, C = 59.7°
Mathematics
Without graphing, determine whether the graph of the quadratic function opens up or opens down.f(x) = x2 - 8
A. opens up B. opens down
Mathematics
Find the circle's circumference or area, as requested. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the circumference.
A. 28.3 yd B. 7.1 yd C. 63.6 yd D. 14.1 yd
Mathematics
Solve the equation.10b - 7 = 9 + 5b
A. 
B. 
C. 
D. 
Mathematics