Ask question

Ask question

All categories

3 years ago

12

Y=x^2+8x+10 what does X=

1 answer:

Alex777 [14]3 years ago

6 0

For this problem you will need to use the quadratic formula. $x=\frac{-b+-\sqrt{b^2-4ac} }{2a}$ (the + and - are together. basically the plus is on top and the minus is on bottom. you should have seen it in your notes hopefully). a = 1, b = 8, and c = 10. from there you just plug everything in and solve.

You might be interested in

What is the answer to the system?

omeli [17]

$\begin{cases}x + y = 40 \\ \frac{x}{20} + \frac{y}{4} = 6\end{cases} \\ \Leftrightarrow \begin{cases} x + y = 40\\x + 5y = 120 \end{cases} \\ \Leftrightarrow \begin{cases} x + y = 40\\ 4y = 80\end{cases} \\ \Leftrightarrow \begin{cases}x = 20 \\ y = 20\end{cases}$

6 0

4 years ago

How do you create a system of linear equations with an infinite number of solutions using the equation y=2/3x-5

wariber [46]

Answer:

We have the equation,

$y=\frac{2x}{3}-5$

i.e. $3y=2x-15$

i.e. $2x-3y=15$

It is required to find a system of equations having infinite solutions.

We know that,

'When the equations are dependent or their graphs are same, the system of equations has infinite number of solutions'.

So, we can take any equation having same graph as that of $2x-3y=15$ .

Let, us take $4x-6y=30$

So, from the graph of these equations below, we get the system of equations having infinite solutions as,

$2x-3y=15$ and $4x-6y=30$ .

3 0

4 years ago

What's the answer to this?

hjlf

Answer:

126 yds will be your answer.

Step-by-step explanation:

30+(24+24)+4+2+(3+3)+(4+30+2)=126

just add all of the sides up.

5 0

3 years ago

Please help me with this someone

zepelin [54]

Answer: The best estimate for this is 52.

3 0

3 years ago

In the diagram a || b, if m∠6 = 21°, what is m∠4?

kumpel [21]

Answer:D

Step-by-step explanation:

4 0

3 years ago