Without graphing the function, determine its amplitude or period as requested.y = 4 cos 
xFind the period.
A. 
B. 
C. 6?
D. 4
Answer: C
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Find all the polar coordinates of the point.(3, ?/4)
A. (3, ?/4 + 2n?), (3, -3?/4 + 2n?) B. (3, ?/4 + 2n?), (-3, -3?/4 + 2n?) C. (3, ?/4 + 2n?), (-3, 3?/4 + 2n?) D. (3, ?/4 + 2n?), (-3, -?/4 + 2n?)
Provide an appropriate response.Arrange the polynomial in descending order: 5x2 + 2x4 + 3x3
A. 2x4 + 3x3 + 5x2 B. 5x2 + 2x4 + 3x3 C. 5x2 + 3x3 + 2x4 D. 2x4 + 5x2 + 3x3
Provide an appropriate response.Solve the word problem using a system of equations with two unknowns:A computer repairman purchased 8 chips and 10 wires for $214.60. The next week, he purchased 16 chips and 12 wires at the same prices for $329.20. How much did each chip and each wire cost?
What will be an ideal response?
Evaluate the expression.9-1 + 5-1
A. 
B. 
C. 2
D. 