How to do quadratics

1 answer:

6 0

First, put your polynomial in standard form(ax²+bx+c=0). Then plug the a,b and c for x=(-b+-√b²-4ac)÷2a. As a result, you can either get one, two or no real answers.

You might be interested in

I NEED HELP PLEASE ASAP!!! :)

erik [133]

Answer:

r = 6.4/(1+sin(θ))

Step-by-step explanation:

As the attachment shows, for the given directrix and eccentricity, the equation is ...

$r=\dfrac{ed}{1+e\sin{\theta}}\\\\r=\dfrac{1.6\cdot 4}{1+1.6\sin{\theta}}\\\\\boxed{r=\dfrac{6.4}{1+\sin{\theta}}}\qquad\text{matches the 2$^{\text{nd}}$ choice}$

7 0

3 years ago

9 squared ? 11 ? 8 ? 4 ? 1 = 60 The ? Can be +,-,x or d division

dexar [7]

5.5.ooooooooooooooooooooooooooooo1111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222333333333333333333333333333333333333333333344444444444444444444444444444444444444444444445555555555555555555555555555555555555555556666666666666666666666666666666666666777777777777777777777777777777777777788888888888888888889999999999999999999999999999999999999999999999999999999999999999999999999999999999

5 0

3 years ago

A? ________ is an arrangement of r objects chosen from n distinct objects without repetition and without regard to order

aliya0001 [1]

If we do not care about order, then a combination is an arrangement of r objects chosen from n distinct objects. It can often be seen written as:

$^{n}C_r$ or $\left(\begin{array}{cc}n\\r\end{array}\right)$

Its factorial form is:

$^{n}C_r = \frac{n!}{r!(n - r)!}$

3 0

3 years ago

What is the y-intercept of the line

pychu [463]

My guess would be -54 because we are starting with -54

4 0

3 years ago

Help please zjyjytbrbbrbrb

Viktor [21]

. .

3 0

2 years ago