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
vagabundo [1.1K]
3 years ago
13

HELP PLEASE NEED TO PASS!!!!!!!!!Rob is investigating the effects of font size on the number of words that fit on a page. He cha

nges the font size on an essay and records the number of words on one page of the essay.
The table shows his data.Which equation represents the approximate line of best fit for data, where x represents font size and y represents the number of words on one page?

y = –55x + 407
y = –41x + 814
y = –38x + 922
y = –26x + 723

Mathematics
2 answers:
zepelin [54]3 years ago
8 0

Using the given data you can build the linear regression (described by linear function y=ax+b) by hand or you can use math calculator to do this. In attached diagram you can see that

a=-26.059\approx -26

and

b=722.633\approx 723.

Then the equation of linear function is

y = -26x + 723.

Answer: correct choice is D.

Gnoma [55]3 years ago
3 0

Answer:

D. <em><u>y = –26x + 723</u></em>

You might be interested in
Samiya bought a tree 3 inches long. Each year, the tree expected to grow 5 inches. How long (How many years) it takes the tree t
Vinil7 [7]

Answer:

19 years

Step-by-step explanation:

Initial height of tree when Samiya bought the tree = 3 inches

Growth in the height of tree every year = 5 inches

Number of years = y

Growth in the height of tree in y years = 5 inches multiplied by number of years

Growth in the height of tree in y years = 5y inches

To find:

Number of years taken by the tree to be 8 ft or 96 inches.

Solution:

The equation for height of tree after y years can be written as:

3 + 5y which is to be compared with 96 inches.

Therefore, the equation is:

3 + 5y = 96\\\Rightarrow 5y=93\\\Rightarrow y \approx 19

Therefore, it will take <em>19 years</em> for the tree to reach a height of 96 inches.

4 0
2 years ago
What is taxation ?...maths literacy​ grade 12
Fynjy0 [20]
Taxation is how much the government taxes you
7 0
3 years ago
HURRY PLZ Four friends are collecting money to buy dog food for an animal shelter. The food will cost $150, and each friend will
satela [25.4K]

Four Friends Collecting money to buy Dog Food:

Food Cost $150.00

Each Friend Collect the Same amount of Money:  $37.50 each Collected

Just Divide:

$150.00   Divide amongst the  4  friends:

150.00/4

150/4       =      75/2

Answer  ======>   Decimal:    $37.50    Each friend would need to collect to reach their goals.


Check:

$37.50    *     4  

$150.00

150/4   =====>   $37.50





Hope that helps!!!!!!!!!                                                 : )






Hope that helps!!!                                             : )

3 0
3 years ago
Ed deposited $6000 into a savings account 4 years ago. The simple interest rate is 3%. How much does Ed have in his account now?
Serga [27]

Answer:

$200,000

Step-by-step explanation:

6,000×100=600,000

600,000÷3=200,000

So $200,000

8 0
3 years ago
Read 2 more answers
Sin(x)=−1 how do you solve this
Zanzabum

Answer:

you can't

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Given that OT =5, XT=12, and OX= 13 is XY tangent to circle O at T? Explain.
    13·1 answer
  • A cone and a cylinder have the same bases and volume.How are their heights related? Explain
    8·2 answers
  • How do you simplify 10(4n+6)-2n?
    14·1 answer
  • SOMEONE HELP PLS I NEED HELPPPPPPP
    6·1 answer
  • Fill in the blanks.
    5·1 answer
  • The sales tax on a piece of furniture that cost $450 was $28.13.What was the percent sales tax.
    10·1 answer
  • The top of the lid to a small container is in the shape of a square with a side length of 6 centimeters, as shown. What is the
    6·1 answer
  • My sister needs help with this please someone help her
    11·2 answers
  • Solve the inequality for n.<br>14 &lt; n - 3​
    12·2 answers
  • Rita sprinted 77 feet in 10 seconds. How many miles per hour is this?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!