Solve the equation.x2 - 4x = 45
A. 9, 5
B. -9, 5
C. 9, -5
D. -9, 1
Answer: C
Mathematics
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Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) = n(A) - n(B)
A. True B. False
Mathematics
Find the LCD for the fractions in the list.
, 
A. q + p B. p2 + q2 C. p2 - q2 D. p - q
Mathematics
Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s.r = 
feet, s = 6 feet
A. 30 radians
B. 
°
C. 
radians
D. 30°
Mathematics
Solve the following quadratic equation using the quadratic formula. Find the exact answer. If there are no real solutions, so state.(2x - 1)(x + 1) = 6
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics