Simplify by finding the absolute value.-?-19?
A. 19
B. 0
C. -19
D. 38
Answer: C
Mathematics
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Solve for x using an equivalent exponential expression.The discus is thrown from a circular region 8 feet 4 inches in diameter. What is the area of the circle (in square inches)? Use 3.14 for ?. Round to the nearest tenth, if necessary.
A. 3,925.0 sq in. B. 7,850.0 sq in. C. 31,400.0 sq in. D. 314.0 sq in.
Mathematics
Solve the system by the substitution method.xy = 90x2 + y2 = 181
A. {(9, 10), (-9, -10), (9, -10), (-9, 10)} B. {(-9, -10), (-10, -9), (-9, 10), (-10, 9)} C. {(9, 10), (-9, -10), (10, 9), (-10, -9)} D. {(9, 10), (10, 9), (9, -10), (10, -9)}
Mathematics
Find the nth term of the geometric sequence.2, 6, 18, . . . ; n = 7
A. 1458 B. 486 C. 13,122 D. 729
Mathematics
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics