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2 years ago

Solve the system of equations by adding them together term by term to eliminate one variable:

Mathematics

1 answer:

Ber [7]2 years ago

3 0

It is 4 pennies and 20 quaters

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Let f(x) = x/(x-6). Find a function y=g(x) so that (f o g)(x)=2x.

earnstyle [38]

Solve as a simultaneous equation maybe?
f(x) + g(x) = 2x or x/(x-6) + y =2x
and then solve so it becomes 2x^2 + 5x =y
then factorise into brackets or use quadratic formula

5 0

3 years ago

Anybody knows this one

kotykmax [81]

You are right. It’s 1/9

5 0

3 years ago

Read 2 more answers

1. Find the slope of a line passing though the points. Write the formula and indicate

Sergio [31]

Answer:

The answer is 3/5

Step-by-step explanation:

try math caculators to help you with these questions thats where i go the solution from.

-Best of luck

6 0

3 years ago

Solve the system of linear equations 3x-2y=1 9x-6y=1

erik [133]

solution:

3x-2y=1 , -9x-6y=-3.

solution system can be represent in (13,0) ( 1 3 , 0 ).

6 0

3 years ago

Find each of the following for

KATRIN_1 [288]

<h2>Answer:</h2>

(a)

$f(x+ h)=8x+8h+3$

(b)

$f(x+ h)-f(x)=8h$

(c)

$\dfrac{f(x+ h)-f(x)}{h}=8$

<h2>Step-by-step explanation:</h2>

We are given a function f(x) as :

$f(x)=8x+3$

(a)

$f(x+ h)$

We will substitute (x+h) in place of x in the function f(x) as follows:

$f(x+h)=8(x+h)+3\\\\i.e.\\\\f(x+h)=8x+8h+3$

(b)

$f(x+ h)-f(x)$

Now on subtracting the f(x+h) obtained in part (a) with the function f(x) we have:

$f(x+h)-f(x)=8x+8h+3-(8x+3)\\\\i.e.\\\\f(x+h)-f(x)=8x+8h+3-8x-3\\\\i.e.\\\\f(x+h)-f(x)=8h$

(c)

$\dfrac{f(x+ h)-f(x)}{h}$

In this part we will divide the numerator expression which is obtained in part (b) by h to get:

$\dfrac{f(x+ h)-f(x)}{h}=\dfrac{8h}{h}\\\\i.e.\\\\\dfrac{f(x+h)-f(x)}{h}=8$

5 0

3 years ago