Fill in the blank with one of the words or phrases listed below.
When two lines intersect, four angles are formed. Two of these angles that are opposite each other are called
angles.
A. vertical
B. straight
C. adjacent
D. obtuse
Answer: A
Mathematics
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Solve the problem.After a new firm starts in business, it finds that its rate of profits (in hundreds of dollars per year) after t years of operation is given by 
= 3t2 + 10t + 7. Find the profit in year 8 of the operation.
A. $25,100 B. $76,250 C. $80,800 D. $63,700
Mathematics
Evaluate the integral.
A. 81
B. 
C. 63
D. 
Mathematics
Find the exact value by using a difference identity.tan 285°
A. 
B. -2 - 
C. 
D. 2 + 
Mathematics
Use mathematical induction to prove the statement is true for all positive integers n.The integer n3 + 2n is divisible by 3 for every positive integer n.
What will be an ideal response?
Mathematics