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4 years ago

Write the coordinates of the vertices after a reflection across the line y = 2.

Mathematics

1 answer:

rewona [7]4 years ago

4 0

P' = (-1, 8) (the x coordinate stays the same and the y coordinate = (distance between -4 and 2) + 2 = 6+2 = 8).

using the same process:-

Q' = (4, 8)

R' = (8, 5)

S' = (3, 5)

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can someone show me how to solve this? the lesson didnt show me how to do it.<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E%7B

Aleks [24]

Answer:

x=-8,8

Step-by-step explanation:

$\frac{x^2}{2} -32=0\\multiply ~by~2\\x^2-64=0\\x^2-8^2=0\\(x+8)(x-8)=0\\ether~ x=-8\\or~x-8=0\\x=8\\x=-8,8x=-8$

missing either x+8=0

x=-8

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3 years ago

F(a)=4a-4<br> g(a)=4a+3<br> Find f(g(a)) =

dsp73

Answer: 16a +8

Step-by-step explanation:

Put g(a) in f(a) in place of a l;ike this:

4(4a + 3) -4 =16a + 12 - 4 = 16a + 8

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3 years ago

Is there infinite solutions, no solutions, or one solution for the equation -5x+10x+3=5x+6

Natalka [10]

Answer:

no solution

Step-by-step explanation:

Good luck!

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3 years ago

What is the area of a rectangle with a perimeter of 250 ft. when the width of the rectangle is 75

zaharov [31]

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Step-by-step explanation:

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3 years ago

The roof of a new sports arena rests on round concrete pillars. The maximum load a cylindrical column of a circular cross sectio

KATRIN_1 [288]

Answer: There are 3.5 metric tons will be supported by a column 8 m high and two thirds m in diameter.

Step-by-step explanation:

Since we have given that

Height of columns of arena = 9 m

Diameter = 1 m

Load = 14 metric tons

Since Load is directly varies as the fourth power of the diameter 'd', and inversely as the square of the height.

so, Mathematically, it is expressed as

$L=\dfrac{kd^4}{h^2}\\\\14=\dfrac{1.k}{9^2}\\\\14\times 81=k\\\\k=1134$

If the height of columns = 8 m

Diameter = $\dfrac{2}{3}\ m$

So, Load would be

$L=\dfrac{1134\times (\dfrac{2}{3})^4}{8^2}\\\\L=3.5\ tons$

Hence, there are 3.5 metric tons will be supported by a column 8 m high and two thirds m in diameter.

7 0

3 years ago