Find the indicated derivative.Find fxz f(x,y,z) = 2x4y10 + 3x6z8
A. 24x6z7
B. 144x5z7
C. 8x3y10 + 144x5z7
D. 8z7
Answer: B
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Solve the problem.An experimental model for a suspension bridge is built. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers stand 40 inches apart. At a point between the towers and 10 inches along the road from the base of one tower, the cable is 1 inches above the roadway. Find the height of the towers.
A. 6 in. B. 3.5 in. C. 4.5 in. D. 4 in.
Decide if the statement is true or false.tan ? can equal any negative real number.
A. False B. True
Solve the formula for the specified variable.M = ?r2hd for r
A. r = ±
B. r = ±
C. r = ±
D. r = ± 
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.A company produced 2,730,000 small appliances in one year and made a profit of $6,720,000. What was the profit on each appliance?
A. $2.46 × 103 B. $24.60 C. $2.46 D. $2.46 × 106