Answer:
9/13
Step-by-step explanation:
Total = 9 + 4
= 13
Probability: 9/13
x = -1, 0, 6
Step-by-step explanation:
factor out an 3x.
3x(x^2 - 5x + 6)
solve for the first x.
3x = 0
x = 0
now factor the polynomial
(x - 6)(x + 1)
x - 6 = 0
x = 6
x + 1 = 0
x = -1
Hello! I would love to help!
Okay, let's first figure out what the problem is asking us. Basically, we need to subtract 4/6 from 5/6 to find the extra left over.
Let's do it!
We need to do 5/6-4/6
To do this, subtract the numerators, or top numbers of each fraction.
The top numbers are 5 and 4
5-4=1
Now, put the new numerator over 6, the common denominator.
1/6
So, your answer is 1/6 cup extra oil.
Hope this helped! Comment if you have questions!
Answer:
The 96% confidence interval estimate for the mean daily number of minutes that BYU students spend on their phones in fall 2019 is between 306.65 minutes and 317.35 minutes.
Step-by-step explanation:
Confidence interval normal
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
That is z with a pvalue of 
, so Z = 2.054.
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 312 - 5.35 = 306.65 minutes
The upper end of the interval is the sample mean added to M. So it is 312 + 5.35 = 317.35 minutes
The 96% confidence interval estimate for the mean daily number of minutes that BYU students spend on their phones in fall 2019 is between 306.65 minutes and 317.35 minutes.
Answer:
y=-1/2x+8
Step-by-step explanation:
Linear function: y=kx+n
If x=0, y=k*0 +n=8, then n=8
if x=-4, y=k(-4)+8=6, then
-4k+8=6
-4k=6-8
-4k=-2
k=-2/(-4)
k=1/2
y=1/2x+8
Really: if x=-2, y=1/2*(-2)+8=-1+8=7
