Solve using a system of three linear equations.A ceramics workshop makes wreaths, trees, and sleighs for sale at Christmas. A wreath takes 3 hours to prepare, 2 hours to paint, and 8 hours to fire. A tree takes 17 hours to prepare, 3 hours to paint, and 4 hours to fire. A sleigh takes 4 hours to prepare, 13 hours to paint, and 7 hours to fire. If the workshop has 115 hours for prep time, 66 hours for painting, and 89 hours for firing, How many of each can be made?
A. 5 wreaths, 3 trees, 6 sleighs
B. 7 wreaths, 6 trees, 4 sleighs
C. 6 wreaths, 5 trees, 3 sleighs
D. 3 wreaths, 6 trees, 5 sleighs
Answer: C
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Find the requested function value of ?.If sin ? = 
, find sec ?.
A. 
B. 
C. 
D. 
Solve.The number of daily calories K needed by a moderately active man who weighs w pounds, is h inches tall, and is y years old, can be estimated by the formula 
. Find the daily caloric need of a moderately active man weighing 218 lbs, who is 70 inches tall and 45 years old.
A. 3737.44 calories B. 4335.24 calories C. 4150.44 calories D. 3922.24 calories
Evaluate the integral by making a substitution and then using a table of integrals.
A. 
tan-1 
+ C
B. 
tan-1 
+ C
C. 
sin-1 
+ C
D. 
sin-1 
+ C
Provide an appropriate response.Find the mistake and correct the problem:If a stack of plywood is 4 feet high and each sheet measures 
inch, how many sheets are in the stack? 4 ft = 4 × 12 = 48 in. 48 × 
= 18 sheets
What will be an ideal response?