Provide an appropriate response.Simplify: 
+ 
+ 
What will be an ideal response?
Mathematics
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Assume that all variables are implicit functions of time t. Find the indicated rate.x2 + 2y2 = 19; dx/dt = 3 when x = 1 and y = 3; find dy/dt.
A. -0.5 B. 0.5 C. 0.22 D. -0.22
Mathematics
Factor the trinomial, or state that the trinomial is prime.x2 + 3xy - 18y2
A. (x - 6y)(x + y) B. (x + 6y)(x - 3y) C. (x - 6y)(x + 3y) D. (x - y)(x + 3y)
Mathematics
Simplify the expression.-3-2
A. 9
B. -9
C. 
D. - 
Mathematics
A traffic light weighing 15 pounds is suspended by two cables (see figure). Find the tension in each cable if ?1 = 40° and ?2 = 35°. Approximate the answers to one decimal place.
?
?
A. ??TL = 12.7 lb; TR = 12.7 lb B. ?TL = 11.9 lb; TR = 11.9 lb C. ?TL = 11.9 lb; TR = 12.7 lb D. TL = 12.7 lb; TR = 11.9 lb E. ??TL = 13.7 lb; TR = 12.9 lb
Mathematics