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MAXImum [283]
3 years ago
11

Y= x2 - 2x - 19

Mathematics
1 answer:
azamat3 years ago
7 0

Answer:

(4, -6)

Step-by-step explanation:

y= x² - 2x - 19

y + 4x = 5

x² - 2x - 19 + 4x = 5

x² + 2x = 5 + 19

x² + 2x = 24

x² + 2x - 24

x² + 6x - 4x - 24

x(x + 6) - 4(x + 6)

(x - 4) (x + 6)

x = 4, x = -6

The pair of points representing the solution set of this system of equations is (-6, 29) and (4, -6)

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AABC is isosceles.<br> AB = 3x - 4 and BC = 5x - 10.<br> AB = [?]
Schach [20]

If AB = BC then set up the equation 3x - 4 = 5x - 10

Subtract 3x.

-4 = 2x - 10

Add 10.

6 = 2x

Divide by 2.

3 = x

AB is 3x - 4 so

3(3) - 4

9 - 4

5.

AB = 5

If AB is not equal to BC then this is not solvable.

But if they are I am sure AB = 5.

Hope this helps

4 0
3 years ago
Find the mean and range. 18 23 10 39 22 17 16 15
stepan [7]

Answer:

Hey there the answer to your question will be below

Step-by-step explanation:

Mean=20

Range=29

___________________________________________________

Range:

Xmas = 39 and Xmas = 10

39-10=29

____________________________________________________

Mean:

160/8 = 20

Hope that helps!

By: xBrainly

7 0
4 years ago
Select the following numbers that cannot represent the area of a polygon.
Alborosie
-5,0 and-200 cannot represent the area of polygon
As 0 has no value and there are impossible to make a polygon with negative value
3 0
3 years ago
5.) How many, and what type of solutions does 2x^2 + 11x + 15 = 0 have?
-Dominant- [34]

Answer: A i think

Step-by-step explanation:

5 0
3 years ago
What does the IQR represent?
Contact [7]
Interquartile Range is the answer
3 0
3 years ago
Read 2 more answers
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