Write a formula for a linear function f that models the data exactly.
A. f(x) = -4x + 6
B. f(x) = 4x + 6
C. f(x) = 8x + 22
D. f(x) = -8x + 22
Answer: B
Mathematics
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Determine whether the integration formula is correct. 
cos-1 7x dx = 
cos-1 7x + 
+ C
A. Yes B. No
Mathematics
Simplify the expression using the imaginary unit i.
A. -7i
B. 7i
C. i
D. ±7
Mathematics
For a given circle, the length of a 90° arc is one-third the circumference of the circle.
Answer the following statement true (T) or false (F)
Mathematics
Find the partial sum 
.
A. 
B. 
C. 
D. 
E. 
Mathematics