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3 years ago

What are like terms? How do you combine them? Can you give an example?

2 answers:

6 0

Like terms are when numbers with and without variables can be combined. ex: 4x+6-8x+=32
you would first combine 4x and -8x because they are the same.

bixtya [17]3 years ago

4 0

Like terms are terms that have the same root and coefficient. For example, 2x and 3x both have the same variable, so you can combine them (add them).

2x + 3x = 5x

You combine the coefficients by adding them. 2 + 3 = 5.

Hope this helps!

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In a simple regression analysis for a given data set, if the null hypothesis β = 0 is rejected, then the null hypothesis ρ = 0 i

kati45 [8]

Answer:

Null hypothesis: $\rho =0$

Alternative hypothesis: $\rho \neq 0$

The statistic to check the hypothesis is given by:

$t=\frac{r \sqrt{n-2}}{\sqrt{1-r^2}}$

And is distributed with n-2 degrees of freedom

And the statistic to check the significance of a coeffcient in a regression is given by:

$t_1 = \frac{\hat{\beta_1} -0}{S.E (\hat{\beta_1})}$

For this case is importantto remember that t1 and p value for test of slope coefficient is the same test statistic and p value for the correlation test so then the answer would be:

Always

Step-by-step explanation:

In order to test the hypothesis if the correlation coefficient it's significant we have the following hypothesis:

Null hypothesis: $\rho =0$

Alternative hypothesis: $\rho \neq 0$

The statistic to check the hypothesis is given by:

$t=\frac{r \sqrt{n-2}}{\sqrt{1-r^2}}$

And is distributed with n-2 degrees of freedom

And the statistic to check the significance of a coeffcient in a regression is given by:

$t_1 = \frac{\hat{\beta_1} -0}{S.E (\hat{\beta_1})}$

For this case is importantto remember that t1 and p value for test of slope coefficient is the same test statistic and p value for the correlation test so then the answer would be:

Always

4 0

2 years ago

The endpoints of AB are given. Find the coordinates of the midpoint C.<br> A (12,-5) and B (-3, 2)

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

(12-3)/2 = 9/2

(-5-3)/2= -8/2= -4

(9/2, -4)

3 0

3 years ago

Alexa and her children went into a movie theater where

slega [8]

1 Pretzel and 5 Bags of Popcorn
(WORK SHOWN BELOW)

7 0

1 year ago

For each value of y, determine whether it is a solution to 7y - 9 = -58

V125BC [204]

Answer:

The answer is -7.

Step-by-Step explanation:

8 0

3 years ago

Please answer the question in the picture

Len [333]

Reorder terms so constants are on the left

(3x + 7) 8x^2
8(3x +7)x^2

Distribute

Answer: 24x^3+56x^2

6 0

2 years ago