1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
faust18 [17]
2 years ago
15

50 Points!!!

Mathematics
1 answer:
OLEGan [10]2 years ago
5 0

Step-by-step explanation:

(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 approximate:

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.

You might be interested in
I NEED HELP ASAP!<br> YOULL GET BRAINLEST
zlopas [31]

Answer:

y= 1/2x+1

Step-by-step explanation:

8 0
3 years ago
There are 90 passengers on a commuter flight from SFO to LAX, of whom 27 are traveling on business. In a random sample of five p
stepladder [879]

Answer:

C). 0.83193

Step-by-step explanation:

There are total of 90 passengers of which 27 are for business.

The probability of passengers for business = 27/90

The probability of passengers for business p = 0.3

The probability of passengers not for business q = 1-The probability of passengers for business

= 1-0.3

= 0.7

Random sample of 5 passenger, probability of at least one business passenger = 1 - probability of no business passenger

probability of no business passenger

= 5C0(0.3)^0 * (0.7)^5

= 1 *1*0.16807

= 0.16807

probability of at least one business passenger = 1 - probability of no business passenger

= 1-0.16807

=0.83193

4 0
3 years ago
X + 2 – z; use x = 6, and z = 2​
grin007 [14]

Answer:

6

Step-by-step explanation:

  • x + 2 - z
  • If x = 6 and z = 2 then : 6 + 2 -2
  • 6 +2 is 8 - 2 is six
  • answer is 6
4 0
3 years ago
Need help on 11, 12, and 13
Sati [7]
11. is 25°
(Both triangles have two congruent angles which means the 3rd angle is bound to be the same. Just add the 90° and the 65° to get 155 and subtract from 180° because all triangles equal 180°)
12. is 25°
(Same as before, two of the angles are congruent so the third one is the same. Add all of the angles together and have them equal 180° because their is a variable present. 2x+60+70=180 or 2x+130=180. subtract 130 from both sides to get the equation 2x=50 and then divide both sides by 2 to get x=25.)
13. y=14 and x=11.6 (assuming m<d says 15x ÷ 2 because I couldn't really read it)
(m<a = m<d and m<b = m<e because they are lined up together in the ABC and DEF equation. so 3y=42 and (15x÷2=87)
7 0
3 years ago
Is the function even odd or neither
Andrei [34K]

Answer: Neither

The function is not even because it doesn't have y axis symmetry. In other words, reflecting it over the vertical y axis means it doesn't line up with itself. The left half is different from the right half.

The function isn't odd either. Why not? Because rotating it 180 degrees around the origin has the function curve looking completely different. A point like (3,6) will rotate to (-3,-6) which is not on the orange curve. This is just one counter-example as to why the function is not odd.

4 0
3 years ago
Other questions:
  • My equasion is -0.84 divided by -2.8 how do i divide that?
    9·2 answers
  • What are the signs of the coordinates in Quadrant 1?​
    11·2 answers
  • 7 : 8 : 9=__:12:__<br><br> Make it so that the question is even on both sides
    5·1 answer
  • What is the total number of unique triangles with side lengths of 4 centimeters. 5 centimeters, and 10 centimeters that can be d
    7·1 answer
  • During the first hour of a snowstorm, 1 and 1/2 inches of snow fell. In the next hour, 4 and 3/8 inches fell. In the third hour,
    14·2 answers
  • 8.633333 repeating as a fraction
    8·1 answer
  • If y varies directly as x and z, and Y=40 when x =5 andz = 4, find y when x=2 and z = 1
    11·1 answer
  • For x=4 the functiom f(x) =x2+bx+c has the minimum value of_9.find c
    6·1 answer
  • How much interest is earned on a principle of $838.50 invested at an interest rate of 19% for 6 years? Round to the nearest cent
    11·1 answer
  • Aria is buying snacks for a party. She will buy one pizza for $20 and some garlic rolls for $2 each. Write an expression to repr
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!