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
Helen [10]
3 years ago
13

Alan and his classmates performed a linear regression analysis on the data set shown below and found that the line of best fit t

hrough the data had the equation y=−54x+18. Which of the following equations represents a line that would intersect their line of best fit at a right angle?

Mathematics
1 answer:
stealth61 [152]3 years ago
5 0

Answer:

C. y=\frac{4}{5}x+7

Step-by-step explanation:

Alan and his classmates found that the line of best fit through the data had the equation y=-\frac{5}{4}x+18

The slope of this line is m=-\frac{5}{4}

If a line would intersect this line of best fit at right angles, then the two lines are perpendicular to each other.

The slopes of perpendicular lines are negative reciprocals of each other,

Hence that line must have slope \frac{-1}{-\frac{5}{4}} =\frac{4}{5}

Therefore we look for a line whose slope is \frac{4}{5} from the given options.

That line is the third option y=\frac{4}{5}x+7

You might be interested in
I need help ASAP I’m doing a test
Anna71 [15]
Where is the pic so I can answer it
6 0
3 years ago
Small squares with sides 4 cm were cut from each of the corners of a square piece of cardboard. then it was folded into an open-
DENIUS [597]
Suppose the length of the card board was x cm by x cm
After squares of 4cm was cut from the corner, the dimension for the box will be:
length=(x-8) cm
width=(x-8) cm
height=4 cm
thus the volume will be:
V=length*width*height
V=4×(x-8)×(x-8)=144
x²-16x+64=36
this can be simplified to form a quadratic equation given by:
x²-16x+28=0
solving the quadratic equation we get:
x=2 or x=14
Thus we conclude that the original dimensions was:
length=14 cm ; width=14 cm
7 0
4 years ago
What point is on the graph of f(x)=3x4
Artyom0805 [142]

Answer:

There are an infinite number of points on this graph. Two of them would be (1, 3) and (0, 0).

Step-by-step explanations:

In order to find any points on the graph, simply put the x value in to get the y value.

f(x) = 3x^4

f(x) = 3(1)^4

f(x) = 3(1)

f(x) = 3

(1, 3)

And then for the second point.

f(x) = 3x^4

f(x) = 3(0)^4

f(x) = 3(0)

f(x) = 0

(0, 0)

5 0
3 years ago
2. Mrs. Jones' science class is planting sunflowers in the school garden. Her class
Levart [38]

Answer:

1 sunflower

Step-by-step explanation:

Start at 15 then go to the left of the line graph. After count how many X there are which there is one.

6 0
3 years ago
Pls complete fast and be sure of ur answer 
jekas [21]

The number of students which are either in algebra or physics are 23 which is the second option.

Given that:-

Total number of students = 30

Number of students both in physics and algebra = 4

Total number of students in Physics = 12

Total number of students in Algebra = 19

We have to find the number of students which are either in algebra or physics.

Number of students in physics but not in algebra = 12 - 4 = 8

Number of students in algebra but not in physics =  19 - 4 = 15

We know that:-

Number of students which are either in algebra or physics = Number of students in physics but not in algebra + Number of students in algebra but not in physics

Hence, we can write,

Number of students which are either in algebra or physics = 8 +15 = 23.

We can also do this question using Venn diagram.

To learn more about Venn diagram, here:-

brainly.com/question/1605100

#SPJ1

4 0
1 year ago
Other questions:
  • Write a decimal that is 1/10 of 3.0
    8·1 answer
  • Draw a line though the points. How much money is saved in 5 weeks
    7·1 answer
  • A baseball player has a batting average of 0.25. What is the probability that he has exactly 2 hits in his next 7 at bats
    12·1 answer
  • Solve for b: 3ab = -7
    5·1 answer
  • 20. Find the quotient.
    15·2 answers
  • 100,121,105,113,108,x;mean 112
    15·1 answer
  • You are dealt one card from a standard​ 52-card deck. Find the probability of being dealt a diamond
    11·2 answers
  • Minhaoh i need help go to my profile the qustion will be there
    9·1 answer
  • I need help with this look at the attachments
    6·1 answer
  • PLEASE HELP QUESTION IN PICTURE
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!