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
Svetlanka [38]
3 years ago
8

13

Mathematics
1 answer:
Assoli18 [71]3 years ago
4 0
B)-3 for the vertex, do u have to graph it?
You might be interested in
PLEASE HELP ASAP!!!!
musickatia [10]
Let us model this problem with a polynomial function.

Let x =  day number (1,2,3,4, ...)
Let y = number of creatures colled on day x.

Because we have 5 data points, we shall use a 4th order polynomial of the form
y = a₁x⁴ + a₂x³ + a₃x² + a₄x + a₅

Substitute x=1,2, ..., 5 into y(x) to obtain the matrix equation
|   1     1    1    1    1  |  | a₁ |      | 42 |
| 2⁴  2³  2²  2¹  2⁰  |  | a₂ |      | 26 |
| 3⁴  3³  3²  3¹  3⁰   |  | a₃ |  =  | 61 |
| 4⁴  4³  4²  4¹  4⁰   |  | a₄ |      | 65 |
| 5⁴  5³  5²  5¹  5⁰  |  | a₅ |      | 56 |

When this matrix equation is solved in the calculator, we obtain
a₁ =      4.1667
a₂ =  -55.3333
a₃ =  253.3333
a₄ =  -451.1667
a₅ =   291.0000

Test the solution.
y(1) = 42  
y(2) = 26
y(3) = 61
y(4) = 65
y(5) = 56

The average for 5 days is (42+26+61+65+56)/5 = 50.
If Kathy collected 53 creatures instead of 56 on day 5, the average becomes
(42+26+61+65+53)/5 = 49.4.

Now predict values for days 5,7,8.
y(6) = 152
y(7) = 571
y(8) = 1631


3 0
3 years ago
Read 2 more answers
Find the area of this shape
Dovator [93]
I think the correct answer is 64 
5 0
2 years ago
Help help help help math math
aksik [14]

Answer:

8 i think im not really sure

Step-by-step explanation:

3 0
2 years ago
Please answer this onee :C
ziro4ka [17]

Answer:

1

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the solution set for this equation.<br> -y2 – 12y = 0
Serhud [2]

Answer:

y = - 12 y = 0

Step-by-step explanation:

first you have to simplify it then you have to separate the equations and then you'll get your answer.

6 0
2 years ago
Other questions:
  • Hypothesis Testing for Means with Small Samples
    10·1 answer
  • 12x^2+20=50 what is x
    8·1 answer
  • Stan's Dteakhous3 has a server to cook ratio pf 5 to 2. The total number pf servers and cooks is 42. How many servere does Stan'
    5·1 answer
  • Describe how [2^3][2^-4] can be simplified
    14·1 answer
  • The data set shows the number of hours per week that each student in a class spends studying at home. What is the shape of the d
    15·1 answer
  • I don’t get this lol...really need help with this!
    10·1 answer
  • A stationer buys a gel pen Rs 20 and sells it at 20% profit.For what price should he buy it so that he can make 25% profit by se
    15·1 answer
  • Can somebody help with my 2 way table assignments..? i know some of you will take this as a fre.e points question and i don't re
    13·1 answer
  • Father will fence a circular garden whose radius is 3.5 m. How many meters of fenching material will he use?​
    11·1 answer
  • Using division, select all the fractions that are equivalent to 30/40.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!