Write as a percent. 0.9
A. 900%
B. 0.9%
C. 0.09%
D. 90%
Answer: D
Mathematics
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Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 
- 
A. -7
B. -7
C. -21
D. 11
Mathematics
Write the appropriate rotation formulas so that in a rotated system the equation has no x'y'-term.6x2 - 4xy + 3y2 - 8x + 8y = 0
A. x = 
; y = 
B. x = 
x' - 
y'; y = 
x' + 
y'
C. x = 
x' - 
y'; y = 
x' + 
y'
D. x = 
; y = 
Mathematics
Determine the average rate of change for the function.f(x) = 7x + 1
A. 1 B. 7 C. -1 D. -7
Mathematics
Write the compound inequality as an absolute value inequality. Do not simplify.-0.8 < 2x + 3 < 0.8
A. 2x + 3 < 
B. 
> 0.8
C. 
< 0.8
D. -0.8 < 
< 0.8
Mathematics