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
Answer: A
Mathematics
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Find the integral.
A. - 
sec4 (x - 3) + C
B. 
sec3 (x - 3) + C
C. 
sec4 (3x - 3) + C
D. 
sec4 (x - 3) + C
Mathematics
R1 = 15 ê, R2 = 15 ê, and R3 = 15 ê. What is IT if I1 = 22 mA?
a. 99 mA
b. 66 mA
c. 33 mA
d. 22 mA
e. 11 mA
Mathematics
Write the equation of the line in slope-intercept form.m = 
, y-intercept (0, -3)
A. y = 
x + 3
B. y = - 
x - 3
C. y = - 
x + 3
D. y = 
x - 3
Mathematics
Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first six terms of the geometric sequence: -3, -15, -75, . . . .
A. 11718 B. - 3906 C. -93 D. - 11718
Mathematics