Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.sin(? + 14°)
A. csc(76° - ?)
B. sin (104° - ?)
C. cos(76° - ?)
D. cos (104° - ?)
Answer: C
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (2, 1) for ln x + xy2 + ln y = 0.
A. 1
B. 
C. -1
D. - 
Decide whether or not the matrices are inverses of each other.
and 
A. Yes B. No
Find the indicated unit rate.In a region, the total number of students enrolled in public schools in a recent year was 426,593. At the same time, there were 23,312 public school teachers. Write a unit rate of students to teachers. Round to the nearest whole number.
A. 18 students for every teacher B. 19 students for every teacher C. 20 students for every teacher D. 17 students for every teacher
Multiply by 1, 2, 3, and so on, to find ten multiples of the number.28
A. 28, 56, 84, 112, 140, 168, 196, 224, 252, 280 B. 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 C. 28, 38, 48, 58, 68, 78, 88, 98, 108, 118 D. 28, 30, 33, 37, 42, 48, 55, 63, 72, 82