Solve the inequality and graph the solution set.
x + 
< 
A. 
or 
B. 
or 
C. 
or 
D. 
or 
Answer: A
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A hypothesis test is to be performed. State the null and alternative hypotheses.At one school, the average amount of time that tenth-graders spend watching television each week is 
The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching television per week has decreased.
A. Null hypothesis: mean time = 21.6 hours Alternative hypothesis: mean time < 21.6 hours B. Null hypothesis: mean time = 21.6 hours Alternative hypothesis: mean time ? 21.6 hours C. Null hypothesis: mean time < 21.6 hours Alternative hypothesis: mean time = 21.6 hours D. Null hypothesis: mean time > 21.6 hours Alternative hypothesis: mean time < 21.6 hours
Round the number to the nearest thousandth, nearest hundredth, and nearest tenth. Remember to round from the original number.86.412
A. 86.41, 86.4, 86 B. 86.412, 86.41, 86.4 C. 86.413, 86.42, 87 D. 86.42, 86.5, 87
Give the coordinates of the vertex and graph the equation in a window that includes the vertex.y = (x + 4)2
A. Vertex: (4, 0)
B. Vertex: (0, -4)
C. Vertex: (-4, 0)
D. Vertex: (0, 4)
Provide an appropriate response.Tell what restrictions, if any, must be made on s, k, and w to guarantee that d is a real number. Assume that s, k, and w are all real numbers and that the denominator is not zero.d = 
What will be an ideal response?