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Lera25 [3.4K]
2 years ago
13

The image of trapezoid PQRS after a reflection across Line W Y is trapezoid P'Q'R'S'. 2 trapezoids are shown. Line W Y is the li

ne of reflection. Line segment R R prime has a midpoint at point Z. Line segment S S prime has a midpoint at point X. What is m? 45º 90º 180º 270º PLZ HURRY !!!
Mathematics
1 answer:
Nesterboy [21]2 years ago
4 0

Answer:

90 degrees

Step-by-step explanation

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Does someone know the answer to this <br> √7x+16+4=x
dalvyx [7]
I think it is 54.332
8 0
2 years ago
Tienes un triángulo equilátero con lados de 10cm, lo divides en dos partes de manera horizontal tal que el área de ambos figuras
Tanya [424]

Answer:

x = 10/√2 ≈ 7.07

Step-by-step explanation:

Comenzaremos por dividir el triángulo en dos partes y definir H, como en la figura adjunta.

Aplicando el teorema de Tales, sabemos que:

\dfrac{l/2}{H}=\dfrac{x/2}{h}\\\\\\\dfrac{l}{H}=\dfrac{x}{h}

También sabemos que, dado que el tirángulo menor es la mitad que el triángulo mayor, la relación entre áreas es:

\dfrac{A}{A_x}=\dfrac{lH/2}{xh/2}=\dfrac{lH}{xh}=2

Dado que formamos dos triángulos rectángulos, podemos despejar el valor de H como:

(l/2)^2+H^2=l^2\\\\H^2=l^2-(l/2)^2=10^2-5^2=100-25=75\\\\H^2=\sqrt{75}

Podemos entonces despejar x de la siguiente manera:

h=\dfrac{H}{l}\cdot x=\dfrac{lH}{2x}\\\\\\2x^2\dfrac{H}{l}=lH\\\\\\2x^2=l^2\\\\\\x=\dfrac{l}{\sqrt{2}}=\dfrac{10}{\sqrt{2}}\approx7.07

6 0
3 years ago
What is negative three, times 4x plus 2
alexgriva [62]
-10 or   X=1.25

hope this helps 

4 0
3 years ago
-8(-5+4x)=104 sssssssssssssssssssssssssssssssssssssssss
astra-53 [7]

Answer:

what is the meaning of 'sssssssssssssssssssssssss'

the answer is x=2

first work out -8(-5+4x) u will get 40+32x

40+32x=104 then group the like terms together.

it will become 32x=104-40. =32x=64

then divide both sides by 32 ur final answer is

x =2

3 0
2 years ago
Read 2 more answers
Can someone help me figure out how to graph f(x)=5x-45
tatuchka [14]
Well since the exponent is 1 then the function given is a linear function so y=5x-45 will be a line with a slope of 5 and a y-intercept at (0,-45)
4 0
3 years ago
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