All categories

3 years ago

Please please help!!! I really need help on this quarion and I keep getting it wrong :(

Mathematics

1 answer:

Marta_Voda [28]3 years ago

8 0

Answer:

$f(x)=x^2+4\\g(x)=4x$

$(f+g)(x)=x^2+4+4x\\(f+g)(x)=x^2+4x+4$

------------------------------------------------------------------

$(f-g)(x)=x^2+4-(4x)\\(f-g)(x)=x^2+4-4x\\(f-g)(x)=x^2-4x+4\\$

-----------------------------------------------------------------

$(f*g)(x)=(x^2+4)(4x)\\(f*g)(x)=4x^3+16x$

-----------------------------------------------------------------

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

You might be interested in

Katie played 5 consecutive games of soccer without being taken off the field. Then, after a single game on the sidelines, she pl

Bingel [31]

Skeirirhhrhfdkfifndjvjfjcidjdjcjcjcjcjcjkkc

8 0

3 years ago

What is the constant of proportionality for 6,47.94?

Maurinko [17]

$\boxed{k=7.99}$

<h2>Explanation:</h2>

In this exercise, we have the following point:

$(6,47.94)$

Let's assume that y varies directly as x, so this implies we can writ y as the product of x and some non-zero real constant k. In a mathematical language:

$y=kx$

As you can see, this is the equation of a line whose slope is k and passes through the origin. Therefore, the slope of the line is the constant of proportionality we are looking for:

$Solving \ the \ equation \ for \ k: \\ \\ k\frac{y}{x} \\ \\ Where: \\ \\ x=6 \\ y=47.94 \\ \\ k=\frac{47.94}{6} \\ \\ \therefore \boxed{k=7.99}$

<h2>Learn more:</h2>

Direct and indirect proportionality: brainly.com/question/10945121

#LearnWithBrainly

4 0

3 years ago

Two planes start from Los Angeles International Airport and fly in opposite directions. The second plane starts 1/2 hour after t

klio [65]

Step-by-step explanation:

hope this helps you

..........

8 0

3 years ago

avier is considering two options for college. Option A: Complete the first two years of schooling at a community college and the

DedPeter [7]

Answer:

kok

Step-by-step explanation:

8 0

4 years ago

Jenna and Becca were both selling cookies door to door. Jenna sold 8 boxes of cookies for every 3 boxes of cookies Becca sold. C

LenaWriter [7]

Answer:
Jenna sold 280 boxes, Becca sold 105 boxes.

Step-by-step explanation:
For every 3 boxes B sold, J sold 8 boxes and ended with a total of 385 boxes sold.
3b+8j=385
From how the question is asked, we can assume that each round of sales would equal 11 total sales. (3b+8j=11)
Knowing the sales take place in intervals of 11, we can solve the problem by doing 385/11.
385/11=35
Finally, with 35 rounds of sales happening and knowing Jenna sells 8 while Becca sells 3 at each one, all that's left to do is multiply.
8x35=280
3x35=105
To be sure we can check our answer by adding them together, 280+105=385.

4 0

1 year ago