Find the exact value by using a half-angle identity.cos 
A. - 
B. - 
C. 
D. 
Answer: C
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Solve the problem. Assume that all pizzas are circular in shape and that the measurement given in the table is the diameter of the pizza in inches. Use 3.14 as the approximate value of ?. Use the table below to find the cost per square inch for each size of veggie pizza. Round your answers to the nearest thousandth. Which size is the best buy?
Cheese$4.20$7.20$10.70Veggie$5.70$7.50$16.00Pesto$5.80$10.30$13.90
A.
| Small | ? $0.037 |
Large ? $0.026
Best buy: medium
B.
| Small | ? $0.148 |
Large ? $0.104
Best buy: medium
C.
| Small | ? $6.748 |
Large ? $9.616
Best buy: small
D.
| Small | ? $0.259 |
Large ? $0.364
Best buy: medium
Factor completely.x2 + 10x - 24
A. cannot be factored B. (x - 12)(x + 1) C. (x - 12)(x + 2) D. (x + 12)(x - 2)
Solve the problem.When three parallel lines are crossed by two or more lines (transversals), the lengths of corresponding segments are proportional (see the following figure).
If c is 3 m longer than b and a is 4 m longer than b, find d when a = 8 m.
A. 
m
B. 6
m
C. 2 m
D. 3
m
Multiply and simplify.
? 
A. m + n
B. 
C. 
D. 