3 years ago

Find the zeros of f(x) = x + 7x + 9 by using the Quadratic Formula.

Mathematics

1 answer:

REY [17]3 years ago

4 0

:))))))))))))))))))))))

You might be interested in

Please help with math problem give 5 star if do

Debora [2.8K]

Answer:

-7

Step-by-step explanation:

The dot is located -7 on the number line.

Hope this helps!

3 0

2 years ago

Read 2 more answers

Maria pays 42.25 for dinner if she leaves a 20% tip how much will she spend on dinner and the tip

adell [148]

Answer:

$50.70

Step-by-step explanation:

4 0

3 years ago

What is the equation in point slope form of a line that passes through the points (5,-3)

Illusion [34]

I think it's option 2 / b

4 0

3 years ago

How to write 139,852 in Standard form

AURORKA [14]

This is standard form

8 0

4 years ago

Read 2 more answers

I need to find the derivative. I’m not very good at this so I am answer asap would be sosososo helpful

Bingel [31]

Answer:

See below.

Step-by-step explanation:

First, notice that this is a composition of functions. For instance, let's let $f(x)=\sqrt{x}$ and $g(x)=7x^2+4x+1$ . Then, the given equation is essentially $f(g(x))=\sqrt{7x^2+4x+1}$ . Thus, we can use the chain rule.

Recall the chain rule: $\frac{d}{dx}[f(g(x))]=f'(g(x))\cdot g'(x)$ . So, let's find the derivative of each function:

$f(x)=\sqrt{x}=x^\frac{1}{2}$

We can use the Power Rule here:

$f'(x)=(x^\frac{1}{2})'=\frac{1}{2}(x^{-\frac{1}{2} })=\frac{1}{2\sqrt{x}}$

Now:

$g(x)=7x^2+4x+1$

Again, use the Power Rule and Sum Rule

$g'(x)=(7x^2+4x+1)'=(7x^2)'+(4x)'+(1)'=14x+4$

Now, we can put them together:

$y'=f'(g(x))\cdot g'(x)=\frac{1}{2\sqrt{g(x)}} \cdot (14x+4)$

$y'=\frac{14x+4}{2\sqrt{7x^2+4x+1} } =\frac{7x+2}{\sqrt{7x^2+4x+1} }$

5 0

3 years ago

Find the zeros of f(x) = x + 7x + 9 by using the Quadratic Formula.​

Find the zeros of f(x) = x + 7x + 9 by using the Quadratic Formula.