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2 years ago

A^2-2ab+b^2-c^2 This is my question from algebric equation please answer

Mathematics

1 answer:

notka56 [123]2 years ago

6 0

A^2-2ab+b^2=(a-b)^2
(a-b)^2- c^2= (a-b-c)(a-b+c)
[difference of square]

Hope this can help.

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PLS HELP IM DESPERATE

katovenus [111]

Answer:

24 square units

Step-by-step explanation:

The area of a parallelogram is given by the formula ...

A = bh

where A represents the area, b the length of the "base", and h the "height" measured at right angles to the base.

Here, it is convenient to use one vertical side of the figure as the base. You can count the grid squares to see that it is 8 units long.

The height is then the distance from one vertical side to the other. Again, you can count the grid squares to see that it is 3 units.

The area is the product of these dimensions:

A = (8 units)·(3 units) = 24 units^2

5 0

3 years ago

Math 8th grade. 40 pts.

zaharov [31]

Whats the question???

6 0

2 years ago

Read 2 more answers

Given points A (-3,-4) and B (2,0), points P (-1,-12/5) partitions line AB in the ratio

kvv77 [185]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
&A&(~ -3 &,& -4~) 
&P&(~ -1 &,& -\frac{12}{5}~)
\end{array}
\\\\\\
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
AP=\sqrt{[-1-(-3)]^2+[-\frac{12}{5}-(-4)]^2}
\\\\\\
AP=\sqrt{(-1+3)^2+(-\frac{12}{5}+4)^2}\implies AP=\sqrt{2^2+\left( \frac{8}{5} \right)^2}
\\\\\\
AP=\sqrt{4+\frac{64}{25}}\implies AP=\sqrt{\cfrac{164}{25}}\implies AP=\cfrac{\sqrt{164}}{\sqrt{25}}
\\\\\\
\boxed{AP=\cfrac{2\sqrt{41}}{5}}$

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
&P&(~ -1 &,& -\frac{12}{5}~) 
&B&(~ 2 &,& 0~)
\end{array}
\\\\\\
PB=\sqrt{[2-(-1)]^2+[0-\left(-\frac{12}{5} \right)]^2}
\\\\\\
PB=\sqrt{(2+1)^2+\left( \frac{12}{5} \right)^2}\implies PB=\sqrt{9+\frac{144}{25}}\implies PB=\sqrt{\cfrac{369}{25}}
\\\\\\
PB=\cfrac{\sqrt{369}}{\sqrt{25}}\implies \boxed{PB=\cfrac{3\sqrt{41}}{5}}$

so, let's check the ratio of AP:PB

$\bf AP:PB\implies \cfrac{AP}{PB}\implies \cfrac{\frac{2\sqrt{41}}{5}}{\frac{3\sqrt{41}}{5}}\implies \cfrac{2\underline{\sqrt{41}}}{\underline{5}}\cdot \cfrac{\underline{5}}{3\underline{\sqrt{41}}}\implies \cfrac{2}{3}$

7 0

2 years ago

In the list of numbers, 6, x, 10, 2, 7, 13, and 15, the median is 10.

Mice21 [21]

Answer:

Step-by-step explanation:

Let’s put the number of the set 6, 10, 2, 7, 13, 15 in order from least to greatest :

2 , 6 , 7 , 10 , 13 , 15

we know that the median is the central value of the number set

then

if the median is 10

then x should be placed between 10 and 13 or 13 and 15

which means

x ≥ 10

therefore

9 could NOT be the value of x

4 0

2 years ago

Solve the equation.<br><br> x−8π=π<br> x=

VladimirAG [237]

Add 8π to both sides

x-8π+8π=π+8π

x=π+8π

x=9π

7 0

2 years ago

A^2-2ab+b^2-c^2 This is my question from algebric equation ​ please answer

A^2-2ab+b^2-c^2 This is my question from algebric equation please answer