Without graphing the function, determine its amplitude or period as requested.y = -4 sin xFind the amplitude.
A. 4
B. 
C. 2?
D. -4?
Answer: A
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Solve the problem. Assume that simple interest is being calculated in each case. Round your answer to the nearest cent.Robert Hall bought a new computer system. To pay for the system, he borrowed 
from the credit union at 3
% simple interest for 120 days. Find the interest owed. (Use a 365 day year.)
A. $61.60 B. $50.40 C. $187.37 D. $46.84
Find parametric equations for the tangent line to the curve with the given parametric equations at the specified point.
 Figure 3.png)
Determine if the type of relation is linear, nonlinear, or none.
A. nonlinear B. none C. linear
Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.5(2x - 31) = 10x - 155
A. Conditional; {0} B. Identity; {all real numbers} C. Identity; ? D. Contradiction; ?