Find values for b such that the triangle has one solution.
?
A = 62°, a = 304.6
?
A. 
B. 
C. 
D. 
E. 
Answer: D
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When two resistors of resistances 
and 
are connected in parallel (see figure), the total resistance 
style="vertical-align:middle;" /> satisfies the equation
?
.
Find 
for a parallel circuit in which 
ohms and R must be at least 1 ohm.
?
A. 
B. 
C. 
D. 
E. 
Find the gradient field F of the function f.f(x, y, z) = ex8 + y7 + z4
A. F = 8x7ex8i + 7y6ey7j + 4z3e z4k B. F = (x8ex8 + y7 + z4)i + (y7ex8 + y7 + z4)j + (z4ex8 + y7 + z4)k C. F = (8x7ex8 + y7 + z4)i + (7y6ex8 + y7 + z4)j + (4z3ex8 + y7 + z4)k D. F = (x7ex8 + y7 + z4)i + (y6ex8 + y7 + z4)j + (z3ex8 + y7 + z4)k
Perform the indicated operations.(2x4 + 13x2) - (7x4 - 8x2)
A. -5x4 + 5x2 B. 16x6 C. 9x4 + 5x2 D. -5x4 + 21x2
Simplify the exponential expression. Assume that variables represent nonzero real numbers.
-1
A. 
B. 
C. 
D. 