Find the exact value of the expression.cos 285°
A. -
(
- 1)
B. -
(
+ 1)
C. - 
D. 
Answer: D
Mathematics
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Perform the operation.101two ? 111two
A. 10,001,100two B. 100,010two C. 1,000,110two D. 100,011two
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Divide. If the division is not possible, write "undefined."
A. 2 R8 B. 2 R7 C. 4 D. 3
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Find the slope of the line through the pair of points.(1.2, 5.1) and (-1.1, 7.4) Round to the nearest tenth.
A. -1 B. -2.3 C. 2.3 D. 1
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Find the x coordinates of all relative extreme points of 
A. x = 3, 4 B. x = -4, -3 C. x = 0, 3, 4 D. x = 2, 6 E. x = -4, -3, 0
Mathematics