A company manufactures two types of electric hedge trimmers, one of which is cordless. The cord-type trimmer requires 2 hours to make, and the cordless model requires 7 hours. The company has only 800 work hours to use in manufacturing each day, and the packaging department can package only 300 trimmers per day. Let x represent the number of cord type models and y represent the number of cordless models. Write the inequalities that describe the constraints on the number of each type of hedge trimmer produced.
?
A. 
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(r, s), y = h(t), z = k(r, s, t)
A. 
= 
+ 
B. 
= 
+ 
C. 
= 
+ 
D. 
= 
Mathematics
Find the missing angle or angles.
A. 66°, 66° B. 33°, 33° C. 48°, 84° D. 156°, 156°
Mathematics
Find the quotient.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Use a graphing calculator to evaluate the sum. Round to the nearest thousandth.
A. 1328.011 B. 1346.387 C. 2428.410 D. 2410.034
Mathematics