Write the inequality using interval notation, and illustrate the inequality using the real number line.1 ? x ? 7
A. [1, 7]
B. [1, 7]
C. (1, 7)
D. (1, 7]
Answer: B
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Solve the problem.A simple electrical circuit consists of a resistor connected between the terminals of a battery. The voltage V (in volts) is dropping as the battery wears out. At the same time, the resistance R (in ohms) is increasing as the resistor heats up. The power P (in watts) dissipated by the circuit is given by P = src="https://sciemce.com/media/4/ppg__ttttt0613191120__f1q4g5.jpg" style="vertical-align: -17.0px;" /> 
. Use the equation
= 
+ 
to find how much the power is changing at the instant when R = 4 ohms, V = 2 volts, 
and dV/dt = -0.08 volts/sec.
A. 0.58 watts
B. 0.42 watts
C. -0.42 watts
D. -0.58 watts
Solve the problem. Use 3.14 for ?. Round to the nearest tenth.An exercise ball has a diameter of 3.3 feet. Find the volume.
A. 150.5 ft3 B. 75.2 ft3 C. 8.5 ft3 D. 18.8 ft3
Use the given values of the variable to make a vertical table of solutions for the equation.y = 6x, x = -2, 0, 2, 4
A. 
B. 
C. 
D. 
A teacher graphed the distribution of the science test scores for her classes. She found that the mean was a score of 78 with a standard deviation of 7. Use this information to find the requested values.
Find the following. a) ? - 3? b) ? - 2? c) ? - ? d) ? e) ? + ? f) ? + 2? g) ? + 3?
A. a) 59, b) 64, c) 70, d) 78, e) 84, f) 97, g) 99 B. a) 54, b) 67, c) 72, d) 78, e) 83, f) 91, g) 100 C. a) 57, b) 64, c) 71, d) 78, e) 85, f) 92, g) 99 D. a) 47, b) 54, c) 61, d) 78, e) 95, f) 102, g) 109