All categories

1 year ago

Talia noticed that she does not have a common factor. What should she do?

Mathematics

1 answer:

Nesterboy [21]1 year ago

6 0

The correct option regarding Talia factoring is given by:

Talia needs to factor out a negative from one of the groups so the binomials will be the same.

<h3>Which expression is Talia tying to factor?</h3>

The expression is given by:

(15x² - 3x) + (-20x + 4).

Her first step was:

3x(5x - 1) + 4(-5x + 1)

After that, she did not factor out anything more out of the expression. However, looking at the two terms of the addition, we can realize that:

(-5x + 1) = -(5x - 1), hence she should factor out the negative.

More can be learned about factoring at brainly.com/question/14800626

#SPJ1

You might be interested in

Which of the following is a property of set?

NARA [144]

Answer:

C might be the answer, I guesss

8 0

2 years ago

A triangle has two angles that measure 18.6 degrees and 113.4 degrees respectively. what is the measure of the third angle?

spin [16.1K]

Answer:

$x = 48$

Step-by-step explanation:

$18.6 + 113.4 + x = 180$

$132 + x = 180$

$x = 180 - 132$

$x = 48$

5 0

3 years ago

Lisa had a set of 12 toy cars. Then she gave her sister 3 cars. What fraction of Lisa's set did Lisa give to her sister.

Trava [24]

Lisa gave her sister 1/4, or one-fourth of her toy cars. Brainliest would really help!

5 0

3 years ago

The least-squares regression model y =−3.4+5.2x and correlation coefficient r=−0.66 were calculated for a set of bivariate data

Makovka662 [10]

Answer:

$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

For this case the value of r = -0.66

Now we can calculate the determination coeffcient:

$r^2 = (-0.66)^2 = 0.4356$

And then we can conclude that 43.56% of the variation in y can be explained by the explanatory variable

And then 100-43.56 = 56.44 % of the variation in y that cannot be explained by the explanatory variable

Step-by-step explanation:

For this case we need to calculate the slope with the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

$\bar x= \frac{\sum x_i}{n}$

$\bar y= \frac{\sum y_i}{n}$

And we can find the intercept using this:

$b=\bar y -m \bar x$

And the model obtained for this case is:

$y = -3.4 +5.2 x$

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

And in order to calculate the correlation coefficient we can use this formula:

$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

For this case the value of r = -0.66

Now we can calculate the determination coeffcient:

$r^2 = (-0.66)^2 = 0.4356$

And then we can conclude that 43.56% of the variation in y can be explained by the explanatory variable

And then 100-43.56 = 56.44 % of the variation in y that cannot be explained by the explanatory variable

8 0

3 years ago

100pts HELP asap divide fractions

statuscvo [17]

6 1/13 for sure
5 14/13 -> 79/13
79/13 to mixed number is 6 1/13

4 0

3 years ago

Read 2 more answers