Answer:
The critical <em>z</em>-value for a confidence level of 85% is ±1.439.
Step-by-step explanation:
The critical value of a distribution is the value beyond which the rejection region lies.
For a confidence interval the rejection region lies beyond two values, the positive and the negative critical value.
The confidence level is, 85%.
Compute the critical value of <em>z</em> for 85% confidence level as follows:
*Use a <em>z</em>-table for the value.
Thus, the critical <em>z</em>-value for a confidence level of 85% is ±1.439.
4
2² simplified means 2 times 2 (2 times itself) so
2² = 4
2×2=4
2²=4
Now , it doesn't make any difference with a number like 2 .
Suppose we had 3 :
3² = 9
3² is not the same as 3 ×2 , and here's the reason for that :
3²=3×3=9
3 × 2 = 6
Answer:
(3x^2) - 8x
Step-by-step explanation:
A = length x width
A = x(3x-8) *Distribute*
A = (3x^2) - 8x
8/24 is the answer
Let’s draw a picture to figure that out.
Let’s make a rectangle and split it into eight pieces since we are finding 8/9 of 3/8. Next, we will circle 3/8 because that is what we are diving up. Then we split the 3/8 into nine pieces since we are diving by 8/9. Then we will have one more group of three to split into nine pieces, so let’s do that. Then, since 9 divided by 3 is 3, we will split the last two pieces into 3 pieces each. Then we will shade in 8/9 of the circled pieces. Count all the pieces now, which should be 24 pieces. Then how many of those are shaded? 8/24 is the answer.