Find the multiplicative inverse of the number.13
A. 1
B. -13
C. 
D. - 
Answer: C
Mathematics
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Solve the equation.(6.2)2 = (13.3)2 + (15.5)2 - 2(13.3)(15.5)cos ? for 0° < ? < 90°
A. 58.1 B. 25.3° C. 21.3° D. 23.3°
Mathematics
Multiply and simplify if possible.(
+ 1)(
- 1)
A. 10 + 2
B. 10
C. 10 - 2
D. 12
Mathematics
Find the vertex, focus, and directrix of the parabola with the given equation.y2 - 14y - 4x + 61 = 0
A. vertex: (3, 7) focus: (2, 7) directrix: x = 4 B. vertex: (7, 3) focus: (7, 4) directrix: y = 2 C. vertex: (7, 3) focus: (7, 2) directrix: y = 4 D. vertex: (3, 7) focus: (4, 7) directrix: x = 2
Mathematics
Find the inverse of the function.f(x) =
A. f-1(x) = x3 + 16
B. f-1(x) = 
C. f-1(x) = x + 4
D. f-1(x) = x3 + 4
Mathematics