Find the exact value of the trigonometric expression without the use of a calculator.tan 255°
A. - 
- 2
B. 
+ 2
C. - 
+ 2
D. 
- 2
Answer: B
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Multiply.(
- 9)(9 + 
)
A. 81 - m
B. m - 18
- 81
C. m - 81
D. m - 
+ 81
Factor the trinomial, or state that the trinomial is prime. Check your factorization using FOIL multiplication.x2 + 5x - 14
A. (x - 7)(x + 2) B. (x + 7)(x - 2) C. (x - 7)(x + 1) D. prime
Name the property illustrated by the statement.4 ? 1 = 4
A. commutative property of multiplication B. multiplicative inverse property C. identity element for multiplication D. distributive property
Determine the x- and y-intercepts of the graph of the quadratic equation.y = x2 + 4x - 7
A. x-intercepts: none; y-intercept: -7
B. x-intercepts: 1 - 
, 1 + 
; y-intercept: -7
C. x-intercepts: -2 - 
, -2 + 
; y-intercept: -7
D. x-intercepts: -1 - 
, -1 + 
; y-intercept: -7