Find the exact value. Do not use a calculator.cos (-?)
A. 1
B. 0
C. -1
D. undefined
Answer: C
You might also like to view...
Rewrite the number in the statement in scientific notation.A business projects next year's profits to be $650,000,000.
A. 6.50 × 107 B. 6.50 × 10-9 C. 6.50 × 109 D. 6.50 × 108
Find the sum or difference. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 1
Perform the operation and write the result in the standard form.(7 - 7i) + (4 - 4i)
A. -11 - 11i B. 11 - 3i C. 11 + 11i D. 11 - 11i
Estimate an answer to the problem.An advertisement states that television sets are on sale at B&G Electronics. The sale prices are: 
set, $147.99; 19-inch set, $208.95; 
set, $231.99; 
set, $289.97; 
set, $519.97. Estimate to the nearest ten how much more a 
style="vertical-align: -4.0px;" /> set costs than a 
set.
A. $30
B. $20
C. $10
D. $0