Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Find the absolute value of the complex number.z = -4
A. -16 B. -4 C. 16 D. 4
Mathematics
Find the x- and y-intercepts for the equation. Then graph the equation.
x + 
y = -2
A. 
, (0, 10)
B. 
, (0, -10)
C. 
, (0, 10)
D. 
, (0, -10)
Mathematics
Write an argument consisting of at least four statements which has as its conclusion: “If the sun shines, then the street will be wet.”
What will be an ideal response?
Mathematics
Write the statement as an inequality.y is greater than or equal to 65
A. y ? 65 B. y < 65 C. y > 65 D. y ? 65
Mathematics