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
Alexxx [7]
3 years ago
12

The heights (in cm) and arm spans (in cm) of 31 students were measured. The association between x(height) and y(arm span) is sho

wn in the scatterplot below. The equation of the line of best fit modeling this relationship is given.
Y=4.5x + 0.977x

Mike is 175cm tall and George is 170cm tall.
Using the model, how many centimeters longer would we expect Mike's arm span to be than George's?

____Cm

Mathematics
1 answer:
abruzzese [7]3 years ago
8 0

Answer:

27.385 cm longer would we expect Mike's arm span to be than George's.

Step-by-step explanation:

We have to find how many centimeters longer would we expect Mike's arm span to be than George's using the equation:

y= 4.5x + 0.977 x

where y= arm span

and x= height

Given:

Mike's height=x = 175 cm

so Mike's arm span= y= 4.5 x + 0.977 x

                                    = 4.5* (175) + 0.977* (175)

                                    = 787.5 + 170.975

                                    = 958.475 cm

George's height = x = 170 cm

so George's arm span= y= 4.5 x + 0.977 x

                                    = 4.5* (170) + 0.977* (170)

                                    = 765 + 166.09

                                    = 931.09 cm

Mike's arm span longer than George's = Mike's arm span - George's arm span

                                                                 = 958.475 - 931.09

                                                                 = 27.385 cm.

You might be interested in
Two numbers are in the ratio 3:5. If one of them is greater than the other by 10,Find the smaller number.​
alisha [4.7K]

Answer:

smaller number = 15

Step-by-step explanation:

Let the two numbers be 5x and 3x respectively.

According to the question —

5x — 3x = 10

2x = 10

x = 5

Thus the smaller number is 3 × 5 = 15

4 0
3 years ago
Read 2 more answers
Evaluate the expression <br>18C14​
Anton [14]

Answer:

i776

f55

Step-by-step explanation:

8 0
3 years ago
Jenica has $4.50 in dimes and quarters. She has 1 more than three as many quarters as dimes. How many quarters does she have?
Zielflug [23.3K]

Answer:

Laura has $4.50 in dimes and quarters she has 3 more dimes than quarters How many quarters does she have

She has 3 more dimes than quarters. How many quarters does she have? Laura has 15 dimes and 12 quarters.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can someone clearly and correctly work out and show me how to answer QUESTION 19 AND 20??
Rudiy27
Is this a simultaneous equation question?
6 0
3 years ago
HELP.... please??????????????
Nostrana [21]

Answers:

Functions

  • y = -x+11
  • y = 2x^2-6x+4
  • y = -7

Not functions

  • x = 3
  • x^2+y^2 = 81
  • y^2 = -5x-12

=======================================================

Explanation:

A function is possible if and only if any given x input leads to exactly one y output.

For something like x^2+y^2 = 81, we can see that x = 0 leads to either y = 9 or y = -9. So this would <u>not</u> be a function. We would need x to pair with only y value to have it be a function.

We have the same thing going on with y^2 = -5x-12 as well.

For anything of the form x = k, where k is any real number, this is also not a function. We have one single input only and it leads to infinitely many outputs. So in a sense, this is even worse compared to the other examples.

-----------------

In summary, we have these three non-functions:

  • x = 3
  • x^2+y^2 = 81
  • y^2 = -5x-12

Everything else is a function. You can use the vertical line test as a visual way to check.

8 0
3 years ago
Other questions:
  • You scored a 95% on your math quiz.The quiz was out of 60 points.How many points did you get
    8·1 answer
  • Probability of rolling a 10, 11 or 12 on a 12 sided die
    15·2 answers
  • YOU GET 10 POINTS HELP HELP HELP HELP ME ME ME ME WITH THE CORRECT ANWSERS
    13·2 answers
  • Can't find the answer for when they arrived at the same time
    9·1 answer
  • Area between two shapes. Pls help geometry IXL !
    8·2 answers
  • Pls help i’m so confused!!
    14·1 answer
  • What is "o"? will get 15 points for correct answer.
    14·2 answers
  • Find the area of this figure
    5·1 answer
  • A discrete sample space is one in which outcomes are counted.<br> True<br> False
    14·1 answer
  • 5. a. Three metal rods of lengths 234cm, 270cm and 324cm were cut into shorter pieces, all of the same length to make window gri
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!