Y=mx+b, where m=(y2-y1)/(x2-x1) and b is equal to the value of y when x=0
We are given the point (0,0) so we know b=0, now just find the slope...
m=(-3-0)/(4-0)=-3/4 so the line is:
y=-3x/4
Answer:
A!
Step-by-step explanation:
All of the numbers line up in skip counting. (by 3)
Hope this helps! Mark me as brainliest if it does :)
Answer:
We need a sample size of at least 1698.
Step-by-step explanation:
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 
.
So it is z with a pvalue of 
, so 
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.
You want the margin of error to be only one minute. What sample size do you need if the confidence level is 99%?
This is at least n when 
. So
Rouding up
We need a sample size of at least 1698.
Answer:
<u>Solve the determinants first:</u>
- B = 5*4 - 2*(-3) = 20 + 6 = 26
- I = 1*1 - 0*0 = 1 - 0 = 1
<u>Find the following</u>
I.
II.
- f(B + I) = f(26 + 1) = f(27)
- f(27) = 4*27² + 3*27 - 5 = 2992
III.
- f(B)² = f(26)² = f(676)
- f(676) = 4*676² + 3*676 - 5 = 1829927
Answer:
A function means that we get one input and one output. In this example that means for every x-value that we have, we only have one y-value.
Looking at the first option, we can see that there is no x-value that has more than one y-value which means that it is a function.
The rest of the options are seen with at least two values for one x-value in one of the points. Therefore, they wouldn't be considered a function leaving us with only option A as the solution.
