Factor.9x2 - 25
A. (3x + 5)(3x - 5)
B. (3x + 5)2
C. (3x - 5)2
D. 9x2 - 25
Answer: A
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49
Graph the quadratic equation. Identify the vertex and the intercepts.y = 2x2 + 6x - 1
A. Vertex: 
;
x-intercepts: 
, 
;
y-intercept: (0, -1)
B. Vertex: 
;
x-intercepts: 
,
;
y-intercept: (0, -1)
C. Vertex: 
;
x-intercepts: 
, 
;
y-intercept: (0, -1)
D. Vertex: 
;
x-intercepts: 
, 
;
y-intercept: (0, -1)
Translate the sentence to an equation using the variable x. Then solve the equation.If 5 times a number is added to -4, the result is equal to 9 times the number.
A. 5x + (-4) = 9x; -1 B. 9(5x - 4) = -4; -1 C. 5x + 4x = 9; 1 D. 5x - (-4) = 9x; 1
Give the value of the function in radians. Round your answer to three decimal places.sin-1 -0.9844
A. 1.394 B. -1.494 C. -1.394 D. 1.494