Write the sentence as an equation. Let the variable x represent the number.9 times the difference of a number and 10 yields 27.
A. 9(x + 10) = 27
B. 9(x - 10) = 27
C. 27(10 - x) = 9
D. 9x - 10 = 27
Answer: B
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List the like terms of the expression.-9y + 3 - 3 + 5x + y - 5
A. -9y and y are like terms 3, - 3, and - 5 are like terms B. -9y and y are like terms C. -9y, 5x, and y are like terms 3, - 3, and - 5 are like terms D. -9y and y are like terms 3, - 3, 5x, and - 5 are like terms
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 5
A. x2 + 
2 = 
; circle,
radius 
, center at 
in
rectangular coordinates
B. 
2 + y2 = 
; circle,
radius 
, center at 
in
rectangular coordinates
C. x2 + y2 = 25; circle, radius 5,
center at pole
D. x = 5; vertical line 5 units to the right
of the pole
Write the sum or difference as a product containing only sines and/or cosines.sin(4?) - sin(2?)
A. sin(3?) cos ? B. sin ? cos(3?) C. 2 sin(3?) cos ? D. 2 sin ? cos(3?)
Simplify.
A. a(
- 
)
B. a(
+ 
)
C. 
D. 