Solve the problem. Round your answer, as needed.A formula for electric circuits is 
= 
+ 
. If a = 17 and b = 19, find c.
A. 1.789
B. 0.006
C. 161.5
D. 2.235
Answer: C
Mathematics
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Find the derivative.y = (csc x + cot x)(csc x - cot x)
A. y ' = 1 B. y ' = - csc x cot x C. y ' = - csc2 x D. y ' = 0
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Given the proportion 
, the pair of numbers b and h are called what?
?
A. means B. extremes C. neither
Mathematics
Solve the problem.An airplane is sighted at the same time by two ground observers who are 5 miles apart and both directly west of the airplane. They report the angles of elevation as 13° and 
How high is the airplane?
A. 1.87 mi B. 1.12 mi C. 2.69 mi D. 4.49 mi
Mathematics
Simplify the expression by combining like terms.10x + 7 + 5x + x - 4
A. 15x + 3 B. 16x + 3 C. 14x + 3 D. 15x - 3
Mathematics