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viva [34]
3 years ago
13

Help with this please

Mathematics
1 answer:
Scilla [17]3 years ago
8 0

Answer:

(7,4)

Step-by-step explanation:

When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative. (7,8)

Afterwards, four units down means changing the y coordinate we have, thus making our (8) into (4.)

Hope this helps!

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Sushilis now 4 times as old as Sunil. 5 years ago Sushilwas 7 times as old as Sunil was then. Find the present ages of each of t
Illusion [34]

Answer:

Sunil = 10 and Sushil= 40

Step-by-step explanation:

Present ages-

Sushil= 4x

Sunil= x

5 years ago-

Sushil = 4x - 5

Sunil = x - 5

4x - 5 = 7(x - 5) = 4x - 5 = 7x - 35

                        = -5 = 3x - 35

                        = 30 = 3x

                        = 10 = x

So substitute the xs for 10-

Present Sushil= 4 x 10 = 40

Present Sunil= 10

6 0
3 years ago
X+2=0 help thanks this is hard
djyliett [7]
-2+2=0

I hope I helped
8 0
4 years ago
Read 2 more answers
How do I create a box plot of minutes it takes to get ready for school?
Alecsey [184]
A box plot is something like this....: http://prntscr.com/jeao6q If you follow that example, you should be able to create one.
Hope this helps!
8 0
3 years ago
Ayuda por favor nesecito este ejercicio
Dimas [21]

La función h(x) es uno a uno en su dominio, por lo tanto es invertible. Y la inversa es:

g(x) = [(x + 3)*4 - 5]/(x + 3 - 1)

<h3>¿Es la función h(x) invertible?</h3>

La función esta definida como:

h(x) = -3 + | (5 - x)/(4 - x) |

El dominio es (4, 5] y el rango es [-3, ∞).

Claramente la función es uno a uno en ese intervalo, como podemos ver en el grafico abajo.

Ahora sabemos que la función es invertible en su dominio, entonces debemos encontrar otra funcion g(x) tal que:

h(g(x)) = x

Entonces debemos tener:

-3 + | (5 - g(x))/(4 - g(x)) | = x

| (5 - g(x))/(4 - g(x)) | = x + 3

Podemos remover el valor absoluto:

(5 - g(x))/(4 - g(x)) = x + 3

5 - g(x) = (x + 3)*(4 - g(x))

5 - g(x) + g(x)*(x + 3) = (x + 3)*4

g(x)*(x + 3 - 1) = (x + 3)*4 - 5

g(x) = [(x + 3)*4 - 5]/(x + 3 - 1)

Esa es la función inversa de h(x).

Sí quieres leer más sobre funciones inversas:

brainly.com/question/14391067

#SPJ1

5 0
1 year ago
How do you find a square root of a number? PLease use 81 as an example.
Gnom [1K]
You have to find the two number that you can multiply to get 81 but the answer is 9
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3 years ago
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