Determine whether f is an arithmetic sequence. If so, identify the common difference.
A. No
B. Yes; n2
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
Evaluate the expression.
3
A. 
B. 3
C. 
D. 
Convert to decimal notation.- 
A. -2.
B. -8.
C. -0.
D. -0.9
Write a formula for a linear function f whose graph satisfies the conditions.Slope: 
; y-intercept: 4
A. f(x) = - 
x - 4
B. f(x) = 
x - 4
C. f(x) = 
x + 4
D. f(x) = - 
x + 4