Answer:
<h2>16.666...%</h2>
Step-by-step explanation:
Let y be the first number
and x be the second number
then
y=x+20%x = (120/100)x
y=(120/100)x ⇔ x=(100/120)y
let‘s write x=(100/120)y in the form x=(p/100)y where p is a number to find
100/120=p/100 ⇔ p=(100×100)/120 = 83.333.....
then x = (83.333/100)y
since 83.333 = 100 - 16.666
then x = y - 16.666%y
Answer:
1/2x(yz)
Step-by-step explanation:
There is a value of 1/2x in each term that you can factor out. You can convert this equation back to its original form using the distributive property.
1/2x*y+1/2x*z=1/2xy+1/2xz
Answer:
the 90% confidence interval is ( 48.684 , 51.316 )
Step-by-step explanation:
Given that :
the sample size = 36
Sample Mean = 50
standard deviation = 4.80
The objective is to calculate a 90% confidence interval.
At 90% confidence interval ;
the level of significance = 1 - 0.9 = 0.1
The critical value for
= 1.645
The standard error S.E =
=
= 0.8
The Confidence interval level can be computed as:
For the lower limit :
=50 - 1.316
= 48.684
For the upper limit :
=50 + 1.316
= 51.316
Thus, the 90% confidence interval is ( 48.684 , 51.316 )
A line can be named either using two points on the line (for example, ↔AB ) or simply by a letter, usually lowercase (for example, line m ). A line segment has two endpoints. It contains these endpoints and all the points of the line between them. You can measure the length of a segment, but not of a line.
Answer:
(a+b)² - 2ab
Step-by-step explanation:
it is a formula :)