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snow_lady [41]
3 years ago
7

Someone pls help me pls!

Mathematics
2 answers:
MatroZZZ [7]3 years ago
7 0

Answer:

y=\sqrt{x-5}

Step-by-step explanation:

alexdok [17]3 years ago
4 0

Answer:

The answer is y=\sqrt{x-5}.

Step-by-step explanation:

To solve for the inverse of this function, start by writing f(x)=x^{2} +5 as an equation, which will look like y=x^{2} +5.

Next, interchange the variables, and the equation will look like x=y^{2}+5. Then, solve for the y in the equation,

To solve for the y in the equation, rewrite the equation as y^{2}+5=x. Next, subtract 5 from both sides of the equation, which will look like y^{2}=x-5. The next step is to take the square root of both sides of the equation to eliminate the exponent on the left side, and the equation will look like y=\sqrt{x-5}.

To put the answer in actual inverse form, the answer will be f^{-1} (x)=\sqrt{x-5}.  

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Determinan las siguientes tablas muestran magnitudes directamente correlaciones o directamente proporcionales
zheka24 [161]

Responder:

Los cuadros 89 y 91 presentan proporcionalidad directa

El cuadro 90 muestra una correlación directa.

Explicación paso a paso:

De la imagen adjunta:

Cuadro 89:

Para mostrar proporcionalidad directa:

y α x

y = kx; k = constante de proporcionalidad

Comprobando las tablas:

Cuadro 89:

A = 1,5; B = 3

B = kA; 3 = 1.5k

k = B / A

k = 3 / 1,5 = 2

Usando k = 2;

demuestre que B = 4 cuando A = 2; para establecer proporcionalidad directa.

B = 2 * 2 = 4

Por tanto, el cuadro 89 exhibe proporcionalidad directa

Comprobando las tablas:

Cuadro 90:

C = 2; D = 8

D = kC; 8 = 2k

k = 8/2 = 4

Usando k = 4;

demuestre que D = 9 cuando C = 3; para establecer proporcionalidad directa.

B

D = 4 * 3 = 12

De la tabla, D = 9;

Por tanto, el cuadro 90 presenta una correlación directa pero no una proporcionalidad directa.

Comprobando las tablas:

Cuadro 91:

E = 1; F = 1/2

F = kE; 1/2 = k

k = 1/2

Usando k = 1/2;

demuestre que F = 3/2 cuando E = 3; para establecer proporcionalidad directa.

F = 1/2 * 3 = 3/2

Por tanto, el cuadro 91 presenta proporcionalidad directa.

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