Answer:
- y = 0.937976x +12.765
- $12,765
- $31,524
- the cost increase each year
Step-by-step explanation:
1. For this sort of question a graphing calculator or spreadsheet are suitable tools. The attached shows the linear regression line to have the equation ...
... y = 0.937976x + 12.765
where x is years since 2000, and y is average tuition cost in thousands.
2. The y-intercept is the year-2000 tuition: $12,765.
3. Evaluating the formula for x=20 gives y ≈ 31.524, so the year-2020 tuition is expected to be $31,524.
4. The slope is the rate of change of tuition with respect to number of years. It is the average increase per year (in thousands). It amounts to about $938 per year.
5. [not a math question]
Answer:
m=-3/4
Step-by-step explanation:
First locate two points that are on solid intersections, (-3, 2) and (1, -1).
<u>y2</u><u>-</u><u>y1</u>
Then use x2-x1' where -1 is y2, 2 is y1, 1 is x2, and -3 is x1.
Plug in numbers, <u>-1-2</u><u> </u>= <u>-</u><u>3</u>
1+3 = 4
-3/4 is m (Slope).
Answer:
$89.64
Step-by-step explanation:
First, you want to find your unit rate.
To do that, simply just divide what you know (cost/amount):
29.88/12
= 2.49
This means that one role of tape costs $2.49.
Now that we know that, you can simply just solve for value "c":
c = 2.49(36)
c = 89.64
1: 30%
2: 50%
3: 2%
4: 33. 3%
5: 80% chance of thunderstorm
6: 60% of not selecting red
Answer:
Length = 7.05m
Step-by-step explanation:
Breadth is just a fancy word for width. We know that the width is 2.6 m and the total area is 18.33 m². We also know that the formula for the area of a rectangle is l*w, length times width. Remember, we are looking for l.
Set up an equation: l*w=A
Where:
- l = Length
- w = Width
- A = Area
Plug in the known values.
l*w=A
l * 2.6 = 18.33
Solve for l. Isolate the variable by dividing both sides of the equation by 2.6:
l = 7.05
You can easily check your work by finding l*w now that you know both values. Always remember to put the unit back into your answer! So your final answer should be l=7.05 m
