Find the exact acute angle ? for the given function value.cot ? = 1
A. 45°
B. 30°
C. 60°
Answer: A
Mathematics
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Use the appropriate sum or difference identity to write the given expression as a function of x alone.cos (x + 2?)
A. -cos x B. cos x C. -sin x D. sin x
Mathematics
Which organization hosts professional development conferences for teachers?
a. NCTM b. The College Board c. ASCD d. All of the above
Mathematics
Find the x- and y-intercepts of the graph of the given equation, if they exist. Then graph the equation.8x - 5 = y
A. x: -5; y: - 
B. x: 
; y: -5
C. x: - 
; y: -5
D. x: -5; y: 
Mathematics
Solve the problem.Find the amount of money in an account after 9 years if $2500 is deposited at 8% annual interest compounded quarterly.
A. $4997.51 B. $5099.72 C. $5123.83 D. $5064.54
Mathematics