factors of are and .
<u>Step-by-step explanation:</u>
Here we have , to identify all factors of this expression . let's find out :
Expression :
⇒
Now , -9x can be written as :
⇒
Putting this value
⇒
Taking out common terms we get
⇒
⇒
⇒
Therefore , factors of are and .
Answer:
d) 65.9 in < μ < 67.1 in.
Step-by-step explanation:
Given that a 99% confidence interval (in inches) for the mean height of a population is 65.7 < μ < 67.3
Mean = average of 65.7 and 67.3 =
i.e. here margin of error =
For 99% confidence interval critical value is 2.58
Hence std deviation =
For 95% confidence interval critical value is 1.96
Margin of error =
Hence confidence interval =
d) 65.9 in < μ < 67.1 in. is right
15% of 420
That is 0.15 of 420
that is 0.15 * 420
that is 63
Hope this helps :)
Answer:
√28 = 2√7 or roughly 5.29
Step-by-step explanation:
work backwards! sqr of 28 = x^2 that equals 28
√28 = 2√7 or roughly 5.29