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inna [77]
3 years ago
14

What is the form of the Difference of Squares identity ? A. a ^ 2 - b ^ 2 = (a - b)(a - b) B. a ^ 2 + b ^ 2 = (a - b)(a - b); a

^ 2 - b ^ 2 = (a + b)(a + b) O a ^ 2 - b ^ 2 = (a + b)(a - b)
Mathematics
1 answer:
lozanna [386]3 years ago
7 0
A^2 - b^2 = (a-b)(a+b)
To test it, expand the right hand side.
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The coordinates of the endpoints of directed line sergeant ABC are A(-8,7) and C(7,-13). If AB:BC = 3:2 then the coordinates of
cestrela7 [59]

The correct answer is A) (1,-5)

Further explanation:

Given points are:

A(-8,7)=(x1,y1)

C(7,13)=(x2,y2)

IT is also given that

AB:BC=3:2

Which means that B divides the line segment in 3:2

Here,

m=3

n=2

To find the coordinates of B

x_B=\frac{mx_2+nx_1}{m+n}\\ = \frac{(3)(7)+(2)(-8)}{3+2}\\=\frac{21-16}{5}\\=\frac{5}{5}\\=1\\y_B=\frac{my_2+ny_1}{m+n}\\=\frac{(3)(-13)+(2)(7)}{3+2}\\=\frac{-39+14}{5}\\=\frac{-25}{5}\\=-5

The coordinates of point B are (1,-5)

The correct answer is A) (1,-5)

Keywords: Coordinate geometry, mid-point

Learn more about coordinate geometry at:

  • brainly.com/question/4819659
  • brainly.com/question/4691222

#learnwithBrainly

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3 years ago
Write 6,392,094,003 in word form
sattari [20]
Six billion three hundred ninety-two million ninety-four thousand and three
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3 years ago
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6x - 2y = 26<br><br> 2x + 3y = 5<br><br> Solve for X and Y
Softa [21]

Answer:

y is equal to -1

x is equal to 4

Step-by-step explanation:

The first thing you would do is multiply the bottom equation by a negative 3. You will get - 6x - 9y = -15. Keep the top equation the same. Both of the 6x's cancel. You then get -11y = 11 so y is equal to negative 1.

Since you have Y, you can now plug that in to any equation to find the value of x. -6x - 2(-1) = 26. You're left with 4. Plug both of the values into each equation to double check.

7 0
2 years ago
Please help I'm on a test right now!!​
Svetach [21]
The answer would be 7-x.
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Im desperate, please help asapp!!
Marianna [84]

Answer:

A: Quadrant IV

B. Quadrant III

Step-by-step explanation:

Quadrant IV is the bottom right

Quadrant III is the bottom left

8 0
2 years ago
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