Solve the problem.An electrical circuit contains three resistors connected in parallel. If the resistance of each is R1, R2, and R3 ohms, respectively, their combined resistance R is given by the formula 
Express R as a rational expression.
What will be an ideal response?
R = 
Mathematics
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Find the slope and y-intercept of the line.-6x + 7y = 8
A. slope = 6; y-intercept = 12
B. slope = 
; y-intercept = 
C. slope = 
; y-intercept = - 
D. slope = 
; y-intercept = 
Mathematics
The surface area S of an 8-in. high can is given by 
, where r is the length of the radius.
a) Find the rate of change of the surface area with respect to the length of the radius. b) What is the surface area of a can that is 8-in. high and has a radius of 2 in.? c) Find the rate of change at r = 2 in.
Mathematics
Simplify. Assume that any variables are positive.
A. 
B. 
C. 
D. 
Mathematics
Complete.32 km = 
m
A. 32,000 B. 0.032 C. 0.32 D. 3200
Mathematics