Answer: x=4/7
Step-by-step explanation:
15-20x=x+3
15-20x-15=x+3-15
-20=x-12
-20x-x=x-12-x
-21x=-12
-21x/-21=-12/-21
x=4/7
Answer:
Step-by-step explanation:
The confidence interval for the population mean x can be calculated as:
Where x' is the sample mean, s is the population standard deviation, n is the sample size and 
is the z-score that let a proportion of 
on the right tail.
is calculated as: 100%-99%=1%
So, 
Finally, replacing the values of x' by 308, s by 17, n by 15 and by 2.576, we get that the confidence interval is:
8 brownies divided by 5 people=8/5=1 3/5
Answer:
x ^ 3 − 11 x ^ 2 + X - x − 23
Step-by-step explanation:
you have to Simplify the expression. Hope that helped!! :)
PLEASE MARK BRAINLIEST!!
Answer:
x= 8 inches
Step-by-step explanation:
you left out the other lengths but since i had this same question once, the other lengths are 12 and 2-
dimensions of the box:
12 in x 2 in x ?
=272 square inches
and we know that there are 6 faces
area= 2 *(12 * 2) + 2 *(2*x) + 2 *(12*x)
area = 272 sq. in. = 48 + 4x + 24x
272 = 48 + 28x
272 - 48 = 28x
224 = 28x
x = 8 inches
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
