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
shusha [124]
3 years ago
6

A polynomial is factored using algebra tiles. An algebra tile configuration. 0 tiles are in the Factor 1 spot and 0 tiles are in

the Factor 2 spot. 15 tiles are in the Product spot in 3 columns with 5 rows: 1 is labeled + x squared, 2 are labeled + x, the 4 tiles below + x squared are labeled negative x, and the 8 tiles below the + x tiles are labeled negative. Which polynomial was factored? x2 – 2x – 8 x2 + 2x – 8 x2 – 2x – 4 x2 + 2x – 4
Mathematics
2 answers:
blagie [28]3 years ago
9 0

Answer:

x² - 2x - 8

Step-by-step explanation:

Algebra tiles are tiles used to represent variables or numbers and are rectangular or square shaped.

1 is labeled + x squared, this gives x²

2 are labeled + x, this gives +x × 2 = +2x

4 tiles below + x squared are labeled negative x, this gives - x × 4 = - 4x

8 tiles below the + x tiles are labeled negative, this gives -1 × 8 = -8

Therefore to get the polynomial that was factored, we add all the terms. This gives :

+x² + (+ 2x) + (-4x) + (-8) = x² + 2x - 4x - 8 = x² - 2x - 8

Temka [501]3 years ago
5 0

Answer:

The answer is A, and if edge is being weird the answer is x^2-2x-8, Have fun dreamers!

Step-by-step explanation:

You might be interested in
The area of the circle above is 1,384.74 units2. What is the circumference of the circle? Use = 3.14.
aev [14]
Radius 21
circumference 131.88
3 0
3 years ago
Read 2 more answers
A hovercraft takes off from a platform. Its height (in meters), xxx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=
Ad libitum [116K]

the maximum height is the y-value of the vertex.

h(x) = -2x² + 20x + 48

      <em>  a=-2, b=20, c=48</em>

x = \frac{-b}{2a} = \frac{-20}{2(-2)} = \frac{-20}{-4} = 5

h(5) = -2(5)² + 20(5) + 48

      =  -50   +  100   + 48

      =          50         + 48

      =                98

Answer: 98 meters

8 0
3 years ago
A researcher computes r = 0.45 using a sample of 18 participants. Is this Pearson correlation coefficient significant for a two-
Eduardwww [97]

Answer with explanation:

Given : The computed r -value = 0.45

Sample size : n=18

Degree of freedom : df=n-2=18-2=16

Now, the critical value for Pearson correlation coefficient  for a two-tailed test at a .05 level of significance will be :

r_c=0.468   ( by critical correlation coefficient table)

Since , r>r_c i.e. 0.45>0.468 , then we say that his Pearson correlation coefficient is not significant for a two-tailed test at a .05 level of significance.

3 0
3 years ago
√2/k+√2=1/k-√2 leaving your answer in the form p+m√n​
vesna_86 [32]

Answer: in decimal form=0.14644660

Step-by-step explanation:

4 0
2 years ago
What is the median of 4, 6, 9, 11, 8, 13, 12
Talja [164]
Write the numbers in order first,
4, 6, 8, 9, 11, 12, 13
Middle number in sequence is the median, in this case median is 9.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Administrators surveyed students enrolled in a new school in order to choose the school mascot. there are 480 students enrolled
    15·2 answers
  • Please help quickly!!! 
    6·2 answers
  • Addition and subtraction facts for the number 358
    7·2 answers
  • in triangle abc , the length of ab is 3 cm and the length of bc is 7 cm. triangle abc will be dilated with the center at the ori
    12·1 answer
  • What is the slope of the line that passes through points (0,5)(2,2)
    14·1 answer
  • Solve these two easy equations:<br><br> 0.04x-3.82=0.68<br><br> 8.5-1.2x=6.7
    5·2 answers
  • Find the surface area and volume of each solid to the nearest tenth.
    15·1 answer
  • 7 (8.5 minus 1.5) + 8 divided by 2
    12·1 answer
  • Hello everyone please read. There is a person who is having a hard time right now and threatening to take their life. We need yo
    14·2 answers
  • The cost of 7 scarves is $61.25. What is the unit price?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!