Find the sum of the sequence.
A. 33
B. 51
C. 60
D. 63
Answer: C
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = xln x
A. 2xln x - 1ln x
B. 
2
C. 
D. xln x - 1ln x
Mathematics
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(tan-1 
)
A. 
B. 
C. 
D. x
Mathematics
Write the vector v in the form v1i + v2j, given 
and the direction angle ? of v.
= 14, ? = 270°
A. -14i B. -14i + 14j C. -14j D. -14i - 14j
Mathematics
Pimmi gets paid $0.50 for the first 100 craft kits that she assembles. She earns $0.75 for each kit over 100. This week she assembled 135 kits. How much did she earn?
A. $67.50 B. $72.50 C. $76.25 D. $101.25
Mathematics