Find all real numbers that satisfy the equation.cos x = 1
A. {x|x = 0 + 2k?}
B. {x|x = ? + 2k?}
C. 
D. 
Answer: A
Mathematics
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Multiply.(9
+ 8 )(
- 5)
A. 9x - 37
+ 40
B. 9x + 37
- 40
C. 9x + 53
- 40
D. 9x - 37
- 40
Mathematics
Use the graph to solve the equation or inequality. If appropriate, write your answer in interval notation.y1 = 5
A. -5, 5 B. -3, 2 C. -2, 2 D. 2
Mathematics
State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 10i + 8j, b = 8i + 7j
A. Parallel, same direction B. Perpendicular C. Parallel,opposite directions D. Neither
Mathematics
Graph the equation using the indicated viewing window.y = x + 4;X min = -5X max = 5X scl = 1Y min = -4Y max = 4Y scl = 1
A. 
B. 
C. 
D. 
Mathematics