Find the average rate of change for the function between the given values.f(x) = 8x3 + 7x2 + 8; from -9 to 1
A. 23
B. 528
C. 5280
D. 
Answer: B
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In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 30 cm, c = 50 cm
A. b = 20 cm B. b = 10 cm C. b = 80 cm D. b = 40 cm
Show that the equation is not an identity by listing the value(s) of the variable from among 0, ?/4, ?/2, and - ?/4 for which the equation is false.sin ? = 
A. 
B. 0 and 
C. 
and - 
D. - 
Solve.An electrical circuit contains two resistors connected in parallel. If the resistance of each is R1 and R2 ohms, respectively, then their combined resistance R is given the formula R = 
If their combined resistance R is 3 ohms and R2 is 5 ohms, find R1.
A. 2 ohms
B. 
ohm
C. 
ohms
D. 1 ohms
Differentiate.y = 
A. 
B. 
C. 
D. 