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vitfil [10]
3 years ago
12

Find the inverse function of (Show work) f(x)=x^2-4

Mathematics
1 answer:
Olegator [25]3 years ago
4 0

Answer:

The answer to your question is f(x) = \sqrt{x+ 4}

Step-by-step explanation:

                                           f(x) = x² - 4

Process

1.- Change f(x) for y

                                           y = x² - 4

2.- Change "x" for "y" and "y" for "x".

                                           x = y² - 4

3.- Make "y" the object of the equation

                                          y² = x + 4

                                          y = \sqrt{x+ 4}

4.- Change "y" for f(x)

                                          f(x) = \sqrt{x+ 4}

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A 4   cm × 6   cm 4cm×6cmstart color #1fab54, 4, start text, c, m, end text, times, 6, start text, c, m, end text, end color #1f
Andreas93 [3]

Answer:

  1. Area of the rectangle: 24 cm²
  2. Area of the circle: 380.13 cm²
  3. Area of between the circle and the rectangle: 356.13 cm²

Explanation:

The question describes<em> a rectangle of dimensions  4 cm × 6 cm inscribed in a circle with radius 11 cm</em>.

You can find:

  • The area of the rectangle
  • The area of the circle
  • The area between the rectangle and the circle.

<u>1. Area of the rectangle:</u>

Area=length\times width=4cm\times 6cm=24cm^2

<u>2. Area of the circle:</u>

Area=\pi\times radius^2=\pi \times (11cm)^2\approx 380.13cm^2

<u>3. Area between the rectangle of the circle:</u>

This is the area of the circle that does not belong to (or is outside of) the area of the rectangle.

Area=\text{area of the circle - area of the rectangle}\\ \\ Area=380.13cm^2-24cm^2=356.13cm^2

8 0
3 years ago
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Daniel buys a basket of eggplants on sale for $25 before tax. The sales tax is 4%. What is the total price Daniel pays for the b
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HELP!!! Use the factor Theorem to determine whether the binomial x+1 is a factor of the polynomial function f(x) =2x^3-9x^2+13x-
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ANSWER

A. No because f(c)=-30

EXPLANATION

The given polynomial is

f(x) =2x^3-9x^2+13x-6

If x+1 is a factor , then f(-1) must evaluate to zero.

f( - 1) =2( - 1)^3-9( - 1)^2+13( - 1)-6

f( - 1) =2( - 1)-9( 1)+13( - 1)-6

f( - 1) = - 2-9 - 13-6

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