Use a right triangle to write the expression as an algebraic expression. Assume that x is positive and in the domain of the given inverse trigonometric function.sin(sin-1 
)
A. 
B. 
C. 
D. x
Answer: A
Mathematics
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Find the principal unit normal vector N for the curve r(t).r(t) = (t2 + 3)j + (2t - 8)k
A. N = - 
j + 
k
B. N = 
j - 
k
C. N = - 
j + 
k
D. N = 
j - 
k
Mathematics
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log
A. -30x B. 1000x C. log x -3 D. log x + 3
Mathematics
Find the gross earnings. Use the overtime premium method. Overtime is paid at time-and-a-half for all hours over 40.
A. $489.63 B. $452.02 C. $678.03 D. $491.63
Mathematics
Use the graph of the function to estimate the x-intercepts.y = x2 + 3x - 18
A. x = -3, x = 6 B. x = -3, x = 18 C. x = -6, x = 3 D. x = 0
Mathematics