Solve the quadratic equation by completing the square.x2 - 
x + 
= 0
A. 
B. 
C. 
D. 
Answer: C
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One of sin x, cos x, and tan x is given. Find the other two if x lies in the specified interval.sin x = - 
,
x in 
A. cos x = 
, tan x = 
B. cos x = 
, tan x = - 
C. cos x = - 
, tan x = - 
D. cos x = - 
, tan x = 
Factor the GCF from the polynomial.-9x2 - 6xy
A. -3x(3x + 2y) B. 3x(3x - 2y) C. -3(3x2 + 2xy) D. -3x(3x - 2y)
Write the equation for the problem below using y = mx + b .
Yolanda's $400 monthly expense account is set up through an automatic teller machine (ATM). She withdraws funds, using the $35 Fast Cash Option. The equation describes the amount that remains in her account after she makes x withdrawals during the month. A. y =35x + 400 B. y = -35x + 400 C. y = -35x – 400 D. y = 400 E. y = 35x – 400
Find all values of x satisfying the given conditions.y = x2 + 4x and y = 40
A. 2
± 2
B. ± 2
C. -2 ± 2
D. -2 ± 2