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Flauer [41]
3 years ago
15

X2 - 12x - 28 What is the factor

Mathematics
2 answers:
Lorico [155]3 years ago
5 0

Answer:

(

x

−

14

)

(

x

+

2

)

Step-by-step explanation:

irina [24]3 years ago
4 0

Answer:

(x - 14)(x + 2)

Step-by-step explanation:

Step 1: Write quadratic

x² - 12x - 28

Step 2: Factor

We need 2 numbers that add up to -12 and multiply to -28. Only -14 and 2 work.

(x - 14)(x + 2)

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Help help help help help
MaRussiya [10]

Answer:

The equation of the line is:

  • y = 3x

Step-by-step explanation:

Given the table

x             y

0            0

1             3

2            6

3            9

4            12

The slope-intercept form of the line equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Taking the two points from the table

  • (1, 3)
  • (2, 6)

Determining the slope between (1, 3) and (2, 6)

(x₁, y₁) = (1, 3)

(x₂, y₂) = (2, 6)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

               =  [6 - 3] / [2 - 1]

               = 3 / 1  

               = 3

Thus, the slope of the line = m = 3

We know that the value of the y-intercept can be determined by setting x = 0 and determining the corresponding value of y.

From the table, it is clear

at x = 0, y = 0

Thus, the y-intercept b = 0

now substituting m = 3 and b = 0 in the slope-intercept form of the line equation

y = mx + b

y = 3x + 0

y = 3x

Therefore, the equation of the line is:

  • y = 3x

The graph of the line equation y = 3x is also attached.

5 0
3 years ago
A website posts evaluations on airlines. It posts the most positive and the most negative comments for each airline. Discuss the
Fittoniya [83]

Answer:

  • B. the reader cannot accurately assess the airline because the evaluations are not necessarily representative of all evaluations.
  • D. the reader cannot accurately assess the airline without reading all the evaluations.

Step-by-step explanation:

Using the most positive and the most negative comments to evaluate the airlines will not be an accurate measure of the airline because these are not a good enough sample. The opinions of those who fall in-between the most positive and negative should also be included as they could have some vital details as well.

Also, in order to be completely accurate, all the comments of the airline should have been posted because this would represent the entire population of comments and so would give the best assessment.

6 0
3 years ago
EASY I AM JUST DUMB!! WILL GIVE BRANLIEST!!! HELP ASAP!!!!
Lisa [10]

Answer:

EF>DF

Step-by-step explanation:

Big angles=big opposite sides

small angles=small  opposite sides

angle d=big

angle e=small

EF>DF

6 0
3 years ago
Read 2 more answers
HELPPPPPPPPPP PLZZZZZZZZZZZZ
Sladkaya [172]
Because h(x)=f(2x+1), h(1)=f(2*1+1)=f(3)
find f(3) in the table, the answer is 6, c is correct. 
6 0
3 years ago
Audreys Candy Store sold 22 individual pounds of jelly beans, one kind at $3.87 per pound and the other at $0.94 per pound. In a
slega [8]

Answer:

  • 3 pounds at $3.87
  • 19 pounds at $0.94

Step-by-step explanation:

Let x represent the number of pounds of high-priced jelly beans sold. Then the total revenue was ...

  3.87x + 0.94(22 -x) = 29.47

  2.93x + 20.68 = 29.47 . . . . . . eliminate parentheses, collect terms

  2.93x = 8.79 . . . . . . . . . . . . . .  subtract 20.68

  x = 3  . . . . . . . . . divide by 2.93

3 pounds of $3.87 jelly beans were sold; 19 pounds of $0.94 jelly beans were sold.

8 0
4 years ago
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