Answer:
A
Step-by-step explanation:
The appropriate inference procedure in this case is a one-sample t test for a mean. The test statistic for this test is
.
Answer:
I think it b
Step-by-step explanation:
I had to ADD 4.2+3
Answer:
The parent function is 
That Parabola's equation is 
Step-by-step explanation:
I can't really explain much, but the top equation is a formula for <em>all </em>equations for a parabola. h and k are the x and y-values of the vertex. a is, well, a.
How did I find the equation of the parabola? Simple. Since the vertex is on the origin, h and k are 0. Also, because it intercepts (2,4) and (1,1), a=1.
Answer:
Step-by-step explanation:
<u>Expression represents x being tripled:</u>
<u>Then increased by 20%:</u>
- 3x + 20% =
- 3x + 20*3x/100 =
- 3x + 0.6x
Correct choice is 2