Find the exact value, given that 
with A in 
with B in 
and 
with C in 
cos 2A
A. - 
B. 
C. 
D. - 
Answer: A
Mathematics
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Provide an appropriate response.Cast iron contains 4.25% carbon. If a bar contains 13.6 pounds of carbon, how heavy is the bar?
A. 3.2 lb B. 0.578 lb C. 320 lb D. 57.8 lb
Mathematics
Solve the right triangle for all missing sides and angles to the nearest tenth.
c = 19B = 65°
A. A = 25°, a = 21, b = 45 B. A = 25°, a = 8, b = 17.2 C. A = 25°, a = 45, b = 21 D. A = 25°, a = 8.9, b = 21
Mathematics
Perform the indicated operation(s). Simplify if possible.
- 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The profit that the vendor makes per day by selling x pretzels is given by the function 
Find the number of pretzels that must be sold to maximize profit.
A. 170 pretzels B. 0.8 pretzels C. 800 pretzels D. 400 pretzels
Mathematics