Find the perimeter.
A. 108 m
B. 129 m
C. 79 m
D. 158 m
Answer: D
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I am saving money in a cookie jar. The amount of money 
, in dollars, in the jar after 
weeks is given by
.
?
By how much do my savings grow over a 8-week period?
A. $184.29
B. $184.00
C. $23.45
D. $23.00
Provide an appropriate response.Simone has $220.00 with her. She goes shopping for some computer supplies. She spends $34.35 for printer ink cartridges, $14.96 for two reams of ink jet paper, $9.95 for two cans of canned air, $11.99 for a CD rack and $143.99 for three software programs. How much does she spend? Does she have enough left to stop off for a $4.59 hamburger meal on the way home?
A. $216.24; no B. $216.25; yes C. $215.24; no D. $215.24; yes
Impedance is a measure of the opposition to the flow of current in an electrical circuit. It consists of two parts called resistance and reactance. Light bulbs add resistance to an electrical circuit, and reactance occurs when electricity passes through coils of a wire like those found in electric motors. Impedance Z in ohms (?) may be expressed as a complex number, where the real part represents the resistance and the imaginary part represents the reactance. Use this information to solve the problem.For two sections of a circuit connected in parallel, impedance is given by 
Calculate the impedance if 
alt="" style="vertical-align: -8.0px;" /> and 
A. 0.82 - 0.87i ?
B. 1.63 - 1.73i ?
C. 1.23 - 1.31i ?
D. 0.381 - 0.407i ?
Write a system of equations for the problem, and then solve the system.Two cars leave a city and head in the same direction. After 5 hours, the faster car is 35 miles ahead of the slower car. The slower car has traveled 255 miles. Find the speeds of the two cars.
A. 44 mph and 51 mph B. 70 mph and 77 mph C. 53 mph and 60 mph D. 51 mph and 58 mph