Simplify.(
+ 4)(
- 4)
A. 22
B. 2
C. 6 - 2
D. -10
Answer: D
Mathematics
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Find the value of the indicated sum.
A. 4 cos ? + 64 cos 3? = -68 B. 4 cos ? + 16 cos 2? + 64 cos 3? = -52 C. 4 cos ? + 16 cos ? + 64 cos ? = -84 D. 4 cos ? + 16 cos 2? + 64 cos 3? = 52
Mathematics
Find (a) the opposite and (b) the absolute value of the number.14.7
A. (a) -14.7 (b) -14.7 B. (a) -14.7 (b) 14.7 C. (a) 14.7 (b) -14.7 D. (a) 14.7 (b) 14.7
Mathematics
Determine graphically the x-value when y = 6 in the given equation.y = 
x
A. 3;
B. 2;
C. 6;
D. 18;
Mathematics
Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.tan ? = 
, 0 < ? < 
Find cos 2?.
A. 
B. 
C. - 
D. - 
Mathematics