Solve the problem.To convert a Fahrenheit temperature to a Celsius temperature, we subtract 32 from the Fahrenheit temperature and then multiply the result by 
. When the temperature is below 29°F the first grade students are not allowed to play outside. What is this temperature in degrees Celsius?
A. -1.7°C
B. 84.2°C
C. 20.2°C
D. 15.9°C
Answer: A
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Solve the problem.The charge q (in coulombs) delivered by a current i (in amperes) is given by 
where t is the time (in seconds). A damped-out periodic wave form has current given by 
Find a formula for the charge delivered over time t.
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Solve by using the Superposition Theorem:
R1 = 4.7 Kê, R2 = 3.3 Kê, R3 = 5.1 Kê, E1 = 40 V, and E1 = 20 V. What is the value of I3?
a. 5.971 mA
b. 4.011 mA
c. 3.621 mA
d. 1.649 mA
e. 0.148 mA
Solve the problem.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = 
, where t is measured in seconds. If an object falls 122.5 meters before it hits the ground, find the time it took for the object to fall.
A. 5 sec B. 25 sec C. 6 sec D. 8 sec
Find the midpoint of the segment having the given endpoints.(7, 1) and (-16, -16)
A. (9, 15)
B. 
C. (-9, -15)
D. 