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3 years ago

Please answer these... please

Mathematics

1 answer:

Vlad1618 [11]3 years ago

5 0

Answer:

1) y=1/8x+2

2) y=1/35x+100

Step-by-step explanation:

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Help me please!

telo118 [61]

Answer:

$f^{-1}(6) = 50$

Step-by-step explanation:

Given

$f(x) = \sqrt{2x} - 4$

Required

Find $f^{-1}(6)$

First, we calculate the inverse function

$f(x) = \sqrt{2x} - 4$

Express f(x) as y

$y = \sqrt{2x} - 4$

Swap the positions of x and y

$x = \sqrt{2y} - 4$

Solve for y: Add 4 to both sides

$4 + x = \sqrt{2y} - 4+4$

$4 + x = \sqrt{2y}$

Square both sides

$(4 + x)^2 = 2y$

Divide both sides by 2

$y = \frac{(4 + x)^2}{2}$

Express y as an inverse function

$f^{-1}(x) = \frac{(4 + x)^2}{2}$

Next, solve for: $f^{-1}(6)$

Substitute 6 for x

$f^{-1}(6) = \frac{(4 + 6)^2}{2}$

$f^{-1}(6) = \frac{(10)^2}{2}$

$f^{-1}(6) = \frac{100}{2}$

$f^{-1}(6) = 50$

7 0

3 years ago

Which of the following describes the correct process for solving the equation 2x − 4 = 20 and arrives at the correct solution? A

Gelneren [198K]

Answer:

<u>The correct answer is A. Add 4 to both sides, and then divide by 2. The solution is x = 12.</u>

Step-by-step explanation:

1. For solving the question and understand which of the statements matches with the solution, let's proceed with the equation:

2x − 4 = 20

2x - 4 + 4 = 20 + 4 (Adding 4 at both sides)

2x = 24

2x/2 = 24/2 (Dividing by 2 at both sides)

x = 12

<u>The correct answer is A. Add 4 to both sides, and then divide by 2. The solution is x = 12.</u>

8 0

3 years ago

If EF=3x-12, FG=4x-15, and EG=29, enter the values of x, EF, and FG.

anzhelika [568]

Answer:

X =8

EF=12

FG=17

Step-by-step explanation:

4 0

2 years ago

Find the second derivative of the function P(t) =(2t+4)/(t+1)

vitfil [10]

use the quotient rule then after using it the first time use it again on your resulting equation, since you are looking for the second derivative

3 0

3 years ago

Don Trastmi is a respected investment consultant, but with a bit of a pessimistic attitude. He always projects correctly when th

Mrrafil [7]

Answer:

The answer is " $\bold{\frac{6}{10}}$ "

Step-by-step explanation:

$\to p(\frac{\text{Market is falling}}{\text{The expected demand is fall Don}}) =1\\\\\to p(\frac{\text{Market is falling}}{\text{The expected demand is rising Don}}) =0.6$

That's why the answer is $\to \frac{6}{10}$

3 0

3 years ago