Negate each quantified statement and rewrite it in English in an alternative way.Some photographs are not displayed at this exhibition.
A. Some photographs are displayed at this exhibition.
B. All photographs are displayed at this exhibition.
C. All photographs are not displayed at this exhibition.
D. No photographs are displayed at this exhibition.
Answer: B
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Solve the problem.Sam Peters needs to calculate the effective interest rate of a simple discount note for $4000, at an ordinary bank discount rate of 12%, for 140 days. Find the effective interest rate rounded to the nearest tenth of a percent.
A. 2% B. 12.4% C. 12.6% D. 12.7%
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find sin 
.
A. 
B. - 
C. 
D. - 
Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
Solve the problem.Suppose there are 6 roads connecting town A to town B and 7 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
A. 13 B. 36 C. 49 D. 42