Solve the problem.By switching service providers, a family's telephone bill changed from about $50 a month to about $43 a month. What was the percent change in the bill?
A. 16.3% increase in bill
B. 15% decrease in bill
C. 14% decrease in bill
D.
| 7% | increase in bill |
Answer: C
Mathematics
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Solve the problem.Given tan ? = 2, use trigonometric identities to find the exact value of csc 
.
A. 2
B. 
C. 
D. 
Mathematics
Prove the identity.cos 
= sin (x + y)
What will be an ideal response?
Mathematics
Write an equivalent expression using the distributive law.5(k - 6)
A. 5k - 6 B. 5k + 30 C. 5k - 30 D. k - 30
Mathematics
Rewrite the following statement in if-then form without using the word “necessary”: Getting an answer of 10 for problem 16 is a necessary condition for solving problem 16 correctly.
What will be an ideal response?
Mathematics