The equation looks like this:
26=x*3.5+8.50
where x is the number of pen you bought.
We solve it like this:
first, we subtract 8.50 from both sides:
17.50 =3.5*x
now we divide both sides by 3.5:
5=x
so you purchased 5 pens.
Hello Croary
We would first need to subtract 13.09cm from 21.59cm which will be 8.5cm, with the left over space, divide in half
<u><em>8.5/2 = 4.25cm</em></u>
:)
14:16 21:24 28:32 are three ratios that are equivalent
Answer:
B) μD = 0.60 ± 0.10(1.397)
Step-by-step explanation:
The confidence interval is given by:

Where
MD=60
n=9
df=n-1=8


Then the confidence interval is
μD=0.60±1.397*(0.3/√9)
μD=0.60±0.10*(1.397)
Ed = 96 but switch the numbers