As your testing H0:p=0.79, then you have a two-tailed test.
The p-value at two-tailed test is given by:
Then, you need to check into the standard normal cumulative table to find at which -z you do have a probability of 0.395. Thus:
As you can see in the picture at z=-0.26 you have a P(Z<=-z)=0.3974
And at z=-0.27 you have a P(Z<=-z)=0.3936.
The average of these values is:
Then, you have a probability of 0.395 at a z of:
Then -z=-0.27, thus z=0.27
Answer:
A
Step-by-step explanation:
For b, the constant term is 3, not -3. B is incorrect.
For c, when the brackets are removed using foil, -3 * - 3 = 9. C is incorrect.
For d, There is no reduction, alteration or math procedure that you can use that will make the constant term anything but 9. The answer is not D.
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That means you are left with A which must be right or the question isn't. Turns our that A is the answer -3 * 1 = - 3
Y=6x
Since she uses 6 beads per inch, you would just multiply 6 by the number of inches (x)
Total price - total price * percent = part
$35 - ($35 * 85%) = x
x = $35 - $29.75
x = $5.25
