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3 years ago

VO) --I not know how to do this

Mathematics

1 answer:

masha68 [24]3 years ago

8 0

Answer:

Square root and the power of 2 cancel each other. The answer remain 4/7

The square of a number is the number times itself. For example the square of 3 is 3x3. The square of 4 is 4x4.

The square root is just the opposite of the square. You can think of it as the "root" of the square or the number that was used to make the square.

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) Find the coordinates of the point A' which is the symmetric point

soldier1979 [14.2K]

Let, coordinate of point A' is (x,y).

Since, A' is the symmetric point A(3, 2) with respect to the line 2x + y - 12 = 0.

So, slope of line containing A and A' will be perpendicular to the line 2x + y - 12 = 0 and also their center lies in the line too.

Now, their center is given by :

$C( \dfrac{x+3}{2}, \dfrac{y+2}{2})$

Also, product of slope will be -1 .( Since, they are parallel )

$\dfrac{y-2}{x-3} \times -2 = -1\\\\2y - 4 = x - 3\\\\2y - x = 1$

x = 2y - 1

So, $C( \dfrac{2y -1 +3}{2}, \dfrac{y+2}{2})\\\\C( \dfrac{2y + 2}{2}, \dfrac{y+2}{2})$

Also, C satisfy given line :

$2\times ( \dfrac{2y + 2}{2}) + \dfrac{y+2}{2} = 12\\\\4y + 4 + y + 2 = 24\\\\5y = 18\\\\y = \dfrac{18}{5}$

Also,

$x = 2\times \dfrac{18}{5 } - 1\\\\x = \dfrac{31}{5}$

Therefore, the symmetric points is $A'(\dfrac{31}{5}, \dfrac{18}{5})$ .

7 0

2 years ago

What is 87 x 54 - 200 divided by 7

Svet_ta [14]

Answer:

87 x 54 - 200 divided by 7
solving-4669[3|7] , 4669.428571
answer-32686.7

Step-by-step explanation:

4 0

2 years ago

Find the slope and reduce P=(-2,3) Q=(8,3)

Tanya [424]

Answer:

∆y/∆x=y2-y1/x2-x1

=3-3/(-2+3)

=0/1

=o I.e it is undefine

7 0

3 years ago

Read 2 more answers

A typical tip in a restaurant is 15% of the total bill. If the bill is $90, what would the typical tip be?

Lana71 [14]

Answer:

$13.50 typical tip

Step-by-step explanation:

So to find the percentage

multiply 0.15*90

You’ll get 13.5

6 0

2 years ago

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Solve please. Correctly<br> -9 - 4p = -2(2 + 2p)

miskamm [114]

Answer: -13

hope it helps

6 0

2 years ago

VO) --I not know how to do this​

VO) --I not know how to do this