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
mihalych1998 [28]
3 years ago
9

The table below shows randy breuers height in inches leading into his teen years. The graph below displays a scatter plot of the

data. Which equation best represents the line of best fit for this data?
The choices are:
A. y=1.1x+23
B. y=1.25x+20
C. y=1.25x+40.67
D. y=1.4x+40.67

Mathematics
2 answers:
-Dominant- [34]3 years ago
8 0
The least-square regression line has a slope of:

m=(nΣxy-ΣyΣx)/(nΣx²-ΣxΣx)

and a y-intercept of:

b=(Σy-mΣx)/n

In this case: n=7, Σxy=4899, Σy=391, Σx=85, Σx²=1153 so

m=(7(4899)-391*85)/(7(1153)-85*85))=1058/846

b=(391*846-85*1058)/(7*846)=34408/846

So the line of best fit is:

y=(1058x+34408)/846  and if we approximated this as your answers see to have done....

y=1.25x+40.67
son4ous [18]3 years ago
8 0

Answer:

c

Step-by-step explanation:

You might be interested in
Who tryna help me lmaaoo
mina [271]
It is b ok I got you
7 0
2 years ago
Kenya exchanges $200 for euros (€). Suppose the conversion rate is €1 = $1.321. How many euros should Kenya receive?
suter [353]
She will get about 151.4 euros when she converts it. 
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%20%2B%2036x%20%2B%20324%20%3D%20%28x%20%2B%20m%29%5E%7B2%7D%20" id="TexFormula1
nasty-shy [4]

Answer:

B. 18

Step-by-step explanation:

x^{2} + 36x + 324 = (x + m)^{2}

(x+18)^{2}= (x + m)^{2}

\cancel x+18= \cancel x + m

18= m

5 0
2 years ago
Read 2 more answers
A population of insects increases at a rate of 1.5% per day. About how long will it take the population to double?
Debora [2.8K]

Answer:

66.67 days

Step-by-step explanation:

8 0
3 years ago
For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?
Verdich [7]

Answer:

72 kg

Step-by-step explanation:

For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?

We are given the ratio

cement: sand:stones

= 1:2:4

The sum of proportion =

1 + 2 + 4 = 7

We are given the kg of sand = 144kg

Step 1

We find the total kg of cement, sand and stones = x

Using the proportion of sand,

2/7 of x = 144kg

2/7 × x = 144kg

2x/7 = 144kg

Cross Multiply

2x = 7 × 144kg

x = 7 × 144kg/2

x = 504kg

Therefore the total kg of cement, sand and stone = 504kg

Step 2

The amount of cement required is calculated as:

1/7 × 504 kg = 72 kg

Therefore, 72kg of cement is required.

4 0
3 years ago
Other questions:
  • What is 14% of 3.09 million
    8·1 answer
  • If its 12:30what time will it be in 48 hours
    9·1 answer
  • PLEASE HELP!
    5·1 answer
  • Simplify the following expression:<br> -6x + 4(-x - 3)
    10·1 answer
  • If (x) = 2х2 + 1 and g(x) = х2 -7, find (f+ g)(x).
    5·1 answer
  • Select all the points that are on the graph of the line y = −1/4 x + 3.
    8·1 answer
  • Abcd is a kite y=<br> I know x=90
    14·1 answer
  • Please solve it
    15·1 answer
  • Shayla's rideshare fare from the airport was $28.50, and she added a 15% tip. How much did Shayla pay in total
    8·1 answer
  • Whoever answers 1 + 1 the fastest gets the brainliest
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!