If the length is 1m less that double the width and the area is 21 then the length would be 15 and the width will be 8, i think.
Answer:
If there's 10 cookies in the jar, and if 2 are peanut butter, the fraction for peanut butter cookies is 1/5, simplified.
Step-by-step explanation:
<u>Given:</u>
- 10 Cookies Total
- 3 are Oreo cookies
- 2 are peanut butter cookies
- 4 are chocolate chip cookies
- 1 is a sugar cookie
Bolded text represents what we'll be focusing on.
2 of the cookies are peanut butter, and there's 10 cookies total.
As a fraction, the peanut butter cookies are represented as:
2/10.
2/10 represents 2 peanut butter cookies out of 10 cookies altogether.
<u>Simplify:</u>
2/10 can be simplified by dividing both numerator and denominator by 2:
Quotient: 1/5.
1/5 is your answer.
Answer:
x = -23
Step-by-step explanation:
3x-4x-14=9
-x = 9 + 14
-x = 23
x = -23
The standard deviation of the sampled containers contents is 0.50.
Option (b) is correct.
To find the standard deviation.
<h3>What is a standard deviation?</h3>
A standard deviation (or σ) exists as a measure of how dispersed the data exists about the mean. Low standard deviation means data exist clustered about the mean, and high standard deviation suggests data exist better extended out.
Given that:
Mean is the sum of all values divided by the total number of values.
Mean
= (1/10) [19.52+19.61+19.62+20.3+19.74+19.88+19.9+19.8+20.97+20.92]
= 200.26/10
= 20.02
s^2=1/10[(19.52-20.02)^2+(19.61-20.02)^2+(19.62-20.02)^2+(20.3-20.02)^2+(19.74-20.02)^2+(19.88-20.02)^2+(19.9-20.02)^2+(19.8-20.02)^2+(20.97-20.02)^2+(20.92-20.02)^2]
1/10*2.52
=0.25
s=0.50
The standard deviation exists at 0.50293.
Therefore, the standard deviation of the sampled containers contents is 0.50.
Learn more about standard deviation here:
brainly.com/question/28189204
#SPJ1