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
kow [346]
2 years ago
12

Determine whether a quadratic model exists for the set of values below. If​ so, write the model. f(0) = -4, f(3) = -19, f(-1) =

-11
Select the correct choice below​:

A) A quadratic model does exist. It is ​f(x)= ?
B) A quadratic model does not exist.
Mathematics
1 answer:
Vikentia [17]2 years ago
7 0

Answer:

  A) The model exists: f(x) = -3x^2 +4x -4

Step-by-step explanation:

A quadratic model will always exist for 3 given points, provided they are not on a line. In that case, a linear model is appropriate.

Here, the slope between -1 and 0 is positive, and the slope between 0 and 3 is negative. Thus, we know these points are not collinear, and a model must exist.

The model is most easily found using a quadratic regression tool. Such is shown in the attachment. It tells us that ...

  f(x) = -3x^2 +4x -4

You might be interested in
Please zoom in before you start solving because there are tricks in here. What is the answer?
blondinia [14]
45 ÷ 3 = 15
21 ÷ 3 = 7
12 ÷ 3 = 4

(4 + 15) x 7 = 133

OR if you’re using bedmas/pedmas

4 + (15 x 7) = 109
7 0
3 years ago
Nate works at least 4 hours but not more than 9 hours. He earns $12.40 per hour. The function f(t) = 12.4t represents the amount
Mashcka [7]

The practical domain is all real numbers from 4 to 9, inclusive.

The practical range is all real numbers from 49.6 to 111.6, inclusive.

These are the correct options.

Explanation:

Given function is f(t) = 12.4t

Let us assume that Nate works 'x' hours so 4<x<9

And multiplying the hours with his earnings we get the range.

4*12.40=49.6 and 9*12.40=111.6. Let the amount earned be represented by y

Hence, domain can be represented as 4<x<9 and range can be represented as  49.6 < y < 111.6

7 0
3 years ago
2. Debbie made 4 dozen heart-shaped cookies. She decorated each with 3cherries. If she bought 4 jars of 40 cherries, did she hav
laiz [17]

Answer:

Yes

Step-by-step explanation:

4 dozen cookies is 4*12 = 48.. Each cookies has 3 cookies. This requires 3*48 = 144. She has 4 jars of 40 each or 4*40 =160. So she has enough.

8 0
3 years ago
What is 16/20 in simplest form
ki77a [65]
8/10= 4/5
4/5 is the simplest form (:
3 0
3 years ago
Read 2 more answers
At an amusement park you get five points for each bull’s eye you hit, but you loose 10 points for every miss. After 30 tries, Yo
Kaylis [27]
She hit 21 bull’s eyes.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Estimate the product then complete the multiplication
    8·1 answer
  • Mrs. Garcia used 5 cups of flour to make 3 loaves of bread. How many loaves of bread can she make with 30 cups of flour?
    13·1 answer
  • Sorry I need help for these too please help!
    5·2 answers
  • The manager of a video game store found that 35 of the 140 people who preordered the latest baseball game canceled their orders
    5·2 answers
  • What is the dependent variable in the graph below? a. month of the year b. days of snow fall c. time d. amount of snowfall PICTU
    9·1 answer
  • Find the measure of angle X
    15·2 answers
  • A rectangular box with an open top has a length of x feet, a width of y feet, and a height of z feet. it costs $4.20 per square
    7·1 answer
  • Solve for y<br> y/6-4=2<br> y= what
    12·1 answer
  • Original price of concert tickets: $100.00 Discount: 21% - What is the sale price
    8·1 answer
  • What’s the answer please i don’t need work shown :)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!