Solve the compound linear inequality graphically. Write your answer in interval notation. 9 < 
< 12 
A. 
? 
B. 
C. 
D. 
Answer: B
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In the circuit below, Vin = 7 V, R = 250 ê, xC = 1000 ê at fr, and C = 90 pF. Find fr and Q.
a. fr = 3.1 MHz, Q = 10
b. fr = 1.8 MHz, Q = 4
c. fr = 1.8 MHz, Q = 1.8
d. fr = 1.2 MHz, Q = 6
e. fr = 1.0 MHz, Q = 4
Use a calculator to find the approximate value of the expression rounded to two decimal places.cos 9°
A. 0.99 B. 0.91 C. -0.91 D. -0.99
Use a system of linear equations to solve the problem.Molly is training for a biathlon. Each weekend she bicycles and runs to prepare for the race. She cycles at a rate of 12 mph and runs at a rate of 5 mph. If she spends 6.5 hours bicycling and running and covers a total of 57 miles, how much time did she spend on each?
A. Bicycling: 3.5 hr, Running: 5 hr B. Bicycling: 3.5 hr, Running: 3 hr C. Bicycling: 4.5 hr, Running: 3 hr D. Bicycling: 3 hr, Running: 3.5 hr
Multiply and write the result in standard form.(2 + 6i)(2 - 7i)
A. 46 + 2i B. 46 - 2i C. -38 + 26i D. -42i2 - 2i + 4