1 year ago

One of the five quadratics below has a repeated root. (The other four have distinct roots.) What is the repeated root?

1 answer:

8 0

Answer:

Step-by-step explanation:

You might be interested in

Molodets [167]

Answer:

i think that this is the answer

5 0

2 years ago

ExtremeBDS [4]

I think the answer is 25%?

8 0

3 years ago

I am Lyosha [343]

Add them all up so it would equal 146.06

3 0

2 years ago

Vesnalui [34]

Given the dataset

$x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}$

We start by computing the average:

$\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26$

We compute the difference bewteen each element and the average:

$x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}$

We square those differences:

$(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}$

And take the average of those squared differences: we sum them

$\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69$

And we divide by the number of elements:

$\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5$

Finally, we take the square root of this quantity and we have the standard deviation:

$\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39$

8 0

3 years ago

daser333 [38]

Distributive property
Step-by-step explanation:
Distributive property says that x(y + z) = (x*y) + (x *z)

6 0

2 years ago