Which pair or pairs of polygons are congruent?

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

3 0

Answer:

Step-by-step explanation:

Congruent shapes are 2 shapes that are ewual in size angles and sides, but they can be rotated or moved around in any way

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WILL MARK BRAINIEST PLEASE HELP

zepelin [54]

The equation that satisfies the information provided is y=2.75x, therefore the coordinates to plot on your graph are as follows.

(1,2.75)
(6,16.50)
(10, 27.5)
(20,55)
(30,82.5)
(40,110)

The graph accordingly, can’t really get the whole graph in but hopefully you get the idea and you can use the coordinates above :)

7 0

3 years ago

Solve the equation for x, where x is a real number (5 points): <br> -3x^2 + 6x + 9 = 7

lana66690 [7]

Add -7 to both sides so that the equation becomes -3x^2 + 6x + 2 = 0.
To find the solutions to this equation, we can apply the quadratic formula. This quadratic formula solves equations of the form ax^2 + bx + c = 0
                                       x = [ -b ± √(b^2 - 4ac) ] / (2a)
                                       x = [ -6 ± √((6)^2 - 4(-3)(2)) ] / ( 2(-3) )
                                       x = [-6 ± √(36 - (-24) ) ] / ( -6 )
                                       x = [-6 ± √(60) ] / ( -6)
                                       x = [-6 ± 2*sqrt(15) ] / ( -6 )
                                       x = 1 ± -sqrt(15)/3
The answers are 1 + sqrt(15)/3 and 1 - sqrt(15)/3.

7 0

3 years ago

Solve by factoring, help

zubka84 [21]

Answer:

$x = - 4 \\ x = - 7$

Step-by-step explanation:

$x {}^{2} + 28 = - 11x \\ x {}^{2} + 11x + 28 = 0 \\ x {}^{2} + 7x + 4x + 28 = 0 \\ x(x + 7) + 4(x + 7) = 0 \\ (x + 4)(x + 7) = 0 \\ \\ x = - 4 \: \: \: \: \: \: \\ \: x = - 7$