Use a graphing calculator to determine which expression completes the identity.The expression 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. cos x
B. csc x
C. tan x
D. sec x
Answer: B
Mathematics
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Solve the differential equation.y' + y = y2
A. 1 - Ce-x
B. 1 + Cex
C. 
D. 
Mathematics
Solve the problem.Dimitri's score on his third math test was 93. His score on the first test was 8 points higher than his score on the second test. His total for all three tests was 263. What was Dimitri's score on the first test?
A. 8 B. 89 C. 81 D. 85
Mathematics
Use the quadratic formula to find the exact solutions.x2 + 6x = 16
A. -8, -2 B. 8, 2 C. -2, 8 D. -8, 2
Mathematics
Use the absolute value to express the distance between the points with coordinates a and b on the number line. Then determine this distance by evaluating the absolute value expression.a = 22 and b = 0
A. 
= 44
B. 
= 0
C. 
= 22
D. 
= -22
Mathematics