(a) How would you characterize the relationship between the hours spent on homework and the test scores? Explain
For this case what we see is that we have a scatter diagram, which we can model using a linear trend defining the following variables:
x: number of hours studied.
y: test scores.
The linear relationship would be of the form:
y = mx + b
(b) Paul uses the function y = 8x + 40 to model the situation. What score does the model predict for 3 h of homework?
y = 8x + 40
For three hours of study we have that the note would be approximately:
y = 8 * (3) + 40
y = 64
(c) What does the number 40 in Part (b) mean in the context of the situation?
The number 40 means that if you do not devote any study time, then you expect the test score to be 40.
Answer:
C
Step-by-step explanation:
Answer:
The answer is 209 pi cm^2
L.A.(Lateral Area) = π19×11 = 209 π
Answer:
36°, 63°, 81°
Step-by-step explanation:
Let 4x = measure of angle 1
7x = measure of angle 2
9x = measure of angle 3
The sum of the measures of the angles of a triangle = 180
So 4x + 7x + 9x = 180
20x = 180
x = 9
4x = 36 = measure of angle 1
7x = 63 = measure of angle 2
9x = 81 = measure of angle 3
Check: 36 + 63 + 81 = 180
Answer:
$2/mile
Step-by-step explanation:
Look at the graph. We see that two points on this line are (0, 2) and (9, 20).
The "run" is (9 - 0), or 9, and the "rise" is (20 - 2), or 18.
The slope of this yellow line is thus m = rise / run = (18 dollars) / (9 miles) = $2/mile
This slope of the yellow line is the incremental taxi fare per mile traveled and is speed of the car and is m = 2 mph.
