Solve the equation by completing the square.x2 + 3x - 9 = 0
A. {-3 - 3
, -3 + 3
}
B. 
C. 
D. 
Answer: B
Mathematics
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Find the nth term of the arithmetic sequence with the given values.a1 = 6, d = 2; n = 27
A. 58 B. -48 C. -46 D. 60
Mathematics
Find a formula for the inverse of the function described below.32° Fahrenheit = 0° Celsius. A function that converts temperatures in Fahrenheit to those in Celsius is 
.
A. f-1(x) = x + 32
B. f-1(x) = 
x - 32
C. f-1(x) = 
(x - 32)
D. f-1(x) = 
x + 32
Mathematics
Graph the function.y = 
cot 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation using the quadratic formula.4x2 - 20x = -25
A. 
B. 
C. 
D. 
Mathematics