Use the slope intercept form ⇒ y = mx + b.
m is the slope and b is the y-intercept.
First find the slope. We can do this by visualizing this. If the y-intercept is at 10, then you would have to go down -10 to reach (0, 0). The x-intercept is at 2, so that means you would have to go 2 spaces to the right.
The slope is -10/2, or -5.
Now plug in the slope and y-intercept into the expression.
y = -5x + 10
Answer:
t = -41.6
Step-by-step explanation:
To solve for the variable t, you must isolate it on one side of the equation. , multiply both sides of the equation by -6.5 and you will get t = 6.4 * (-6.5) or t = -41.6.
Answer:
C.25
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.
Which of the following is the smallest sample the company can take to achieve the desired margin or error?
This is n when
We have to round up.
So the correct answer is:
C.25
Answer:
2.21
Step-by-step explanation:
Total meters of wood = 7.58
first time shopping: 2.25
second time shopping: 3.12
total = 2.25 + 3.12
total = 5.37
How many more meters of wood does Jack need to buy for his school project?
Meters needed = 7.58 - 5.37
Meters needed = 2.21
Step-by-step explanation:
yes 1 / 3..it is a fraction