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
Greeley [361]
3 years ago
13

Shannon said she can find the factored form of a trinomial of the form x^2-bx+c from the factors of b. The sum of the factors of

b will equal c. Explain Shannon’s error
Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0
Can you help me no one is helping me
You might be interested in
-1. The table shows the annual consumption of cheese per person in the United States for selected years in the 20th century. Let
olga nikolaevna [1]
<span>Using processing software (Excel) or even a decent scientific calculator. You input the values and generate the best fit cubic equation.
For number 1, the equation is
y = 8x10</span>⁻⁵ x³ - 0.0097 x² + 0.374 x + 1.083
where x is the number of years since 1900
y is the pounds cheese consumed

For number 2, the equation is
y = -3x10⁻⁵ x³ + 0.0028 x² + 0.2155 x + 1.7736

For number 3
P(-1) = 18
5 0
3 years ago
What is the value of the correlation coefficient r of the data set?
enyata [817]

The correct option will be:  C) 0.84

<u><em>Explanation</em></u>

Formula for Correlation coefficient :

r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}

First, for each point(x, y), we need to calculate x², y² and xy .

Then, we will find sum all x, y, x², y² and xy, which gives us Σx, Σy, Σx², ∑y² and Σxy

<em>(Please refer to the attached image for the table )</em>

Here we got, ∑x = 44 , ∑y = 183 , ∑x² = 362 , ∑y² = 6575 and ∑xy = 1480

'n' is the total number of data set, which is 7 here.

So, plugging those values into the above formula..........

r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}\\ \\ r=\frac{7(1480)-(44)(183)}{\sqrt{[7(362)-(44)^2][7(6575)-(183)^2]}}\\ \\ r=\frac{10360-8052}{\sqrt{(598)(12536)}}\\ \\ r=\frac{2308}{\sqrt{7496528}}\\ \\ r=0.84

So, the value of the correlation coefficient is 0.84

4 0
3 years ago
Read 2 more answers
Help with my math please
Sindrei [870]

Answer:

j mmmmmmm

Step-by-step explanation:

mmmmmmmmm

6 0
2 years ago
What is the equation of a circle whose center is at (-2, 1) and radius is 2.2?
Lena [83]
C is the correct answer
3 0
3 years ago
Whats 5/9 / is dived
mamaluj [8]

Answer:

0.55555555

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • If i go into an ice cream parlor, and i have the choice of having one of 10 different flavors, with one of 5 different toppings
    11·1 answer
  • If five times a number plus two is 17 what is the number
    10·2 answers
  • 1. What is the simplified form of (x-3)/(x^2+x-12)• (x+4)/(x^2+8x+16) ?. . 2.What is the simplified form of (x+1)/(x^2+x-6) divi
    9·1 answer
  • What is the solution (a, b) to this system of linear equations?<br><br> 3a+6b=45<br><br> 2a-2b=-12
    14·1 answer
  • Point Q is located at (-4, 6). Point R is located at (8, 6).
    13·1 answer
  • Please help me I'm desperate!! Debbie is making bows that use 1/5 yard of ribbon each. If Debbie has 3 yards of ribbon how many
    13·1 answer
  • Whiwhich of the following is a rational number? (4 points) square root 1 square root 2, square root 3, square root 5
    7·1 answer
  • A circle is inscribed in a square, as shown in the figure below. The length of
    7·1 answer
  • What are the coordinates of the image of point K(1,3) after a reflection over the line y = -1
    13·2 answers
  • Pls answer asap :)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!