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
GaryK [48]
4 years ago
9

The function f (x )equals 2.9 square root of x plus 20.1, models the median height, f(x), in inches, of boys who are x months of

age and for girls the function is f (x )equals 3.1 square root of x plus 19. Use a calculator to find the median height for both a boy and a girl who is 24 months old. Repeat the process for a child 48 months old. The actual median height for boys 48 months old is 40.8 inches and 40.2 inches for girls 48 months old. Does the model overestimate or underestimate the actual median heights and by how much
Mathematics
1 answer:
LenKa [72]4 years ago
4 0

Answer:

Kindly check explanation

Step-by-step explanation:

Given the models for the median height of biys and giels:

BOY:

f(x) = 2.9√x + 20.1

GIRL:

f(x) = 3.1√x + 19

If x = 24 months

BOY:

HEIGHT = 2.9√24 + 20.1

= 2.9× 4.8989794 + 20.1

= 14.207040 + 20.1

= 34.307 inches

GIRL:

HEIGHT = 3.1√24 + 19

= 3.1 × 4.8989794 + 19

= 15.186836 + 19

= 34.1868 inches

If x = 48

Boy:

HEIGHT = 2.9√48 + 20.1

= 2.9× 6.9282032 + 20.1

= 20.091789 + 20.1

= 40.19 inches

Actual median height = 40.8

Hence, model underestimates by (40.80 - 40.19) = 0.61 inches

Girl:

HEIGHT = 3.1√48 + 19

= 3.1 × 6.9282032 + 19

= 21.477430 + 19

= 40.48 inches

Actual median height = 40.20

Hence, model overestimates by (40.48 - 40.20) = 0.28 inches

You might be interested in
Which lake has a surface area that is 14938 square miles greater than the surface area of Lake Ontario draw a model and write a
MatroZZZ [7]
1.lłxZJGGHF6FEEUHXAY 3.67
3 0
3 years ago
The number 6231 is divisible by 3.
Oliga [24]

Answer:

true

Step-by-step explanation:

The answer would be 2,077

6 0
3 years ago
Solve for x.<br><br><br> A.90<br> B.100<br> C.135<br><br><br><br><br> HELP ME
ipn [44]

Answer:

its B

Step-by-step explanation:

5 0
3 years ago
Paul purchased 3 video games for $17.25 each. Which expression is the best choice to help him determine the total amount of mone
miskamm [114]
The answer would be C because you are paying for 3 video games and each one is $17.25 so therefore you would multiply 3(17.25)=$51.75 that was spent.
5 0
4 years ago
Read 2 more answers
12) PLS HELP ASAP<br><br><br>BRAINLIEST AND 10 + POINTS :)
puteri [66]

Answer:

the first one

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the elevation of 1/2 to 16 feet
    14·2 answers
  • How do you put y=-x squared on a table
    13·1 answer
  • Given the functions f(n) = 25 and g(n) = 3(n − 1), combine them to create an arithmetic sequence, an, and solve for the 12th ter
    10·2 answers
  • I don’t know what she did wrong I can’t find anything
    10·1 answer
  • It takes 20 cups of chicken broth to make a chicken soup recipe. How much is this in quarts?
    9·1 answer
  • Which of these is a tax form that employers send to their employees?
    11·2 answers
  • Billy is making a sign in the shape of a regular octagon. What is the measure of each interior angle of the sign?
    12·1 answer
  • What data display would be best for the numbers and types of different species of fish
    7·1 answer
  • What is the value of the underlined digit?<br> 14.097 <br> 7 being underlined
    8·1 answer
  • What is the measure of angle y? 20
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!