Solve.The inmedance Z in an alternating current circuit (like the one used in your home and in your classroom) is given by the formula Z = 
, where V is the voltage and I is the current. Find the value of Z if 
and 
A. 
+ 3i
B. -3 + 
i
C. 3 - 
i
D. - 
- 3i
Answer: B
Mathematics
You might also like to view...
Solve.Given that sin ? = 0.7821 and that ? is in quadrant I, find sin 2?.
A. sin 2? = 0.9747 B. sin 2? = -0.8773 C. sin 2? = 0.926 D. sin 2? = 1.0722
Mathematics
Solve and graph. Write the answer in set-builder notation.f + 7 < 17
A. {f
f ? 10}
B. {f
f ? 10}
C. {f
f < 10}
D. {f
f > 10}
Mathematics
Factor.5x2 - 5x - 30
A. 5x2 - 5x - 30 B. 5(x + 2)(x - 3) C. (5x + 10)(x - 3) D. 5(x - 2)(x + 3)
Mathematics
Convert as indicated. If necessary, round to two decimal places.14 ounces to grams
A. 396.9 g B. 6.3 g C. 30.8 g D. 0.56 g
Mathematics