All categories

2 years ago

Simplify the expression -3.7 + 5g + 4k + 11.1 + (-10g)

Mathematics

1 answer:

Ede4ka [16]2 years ago

3 0

I believe the answer would be
7.4 - 5g + 4k

You might be interested in

What is the equation of the best-fitting regression line? Find this in two ways. First, using the regression analysis part of th

Lemur [1.5K]

Step-by-step explanation:

Regression analysis is used to infer about the relationship between two or more variables.

The line of best fit is a straight line representing the regression equation on a scatter plot. The may pass through either some point or all points or none of the points.

Method 1:

Using regression analysis the line of best fit is: $y=\alpha +\beta x+e$

Here α = intercept, β = slope and e = error.

The formula to compute the intercept is:

$\alpha =\bar y-\beta \bar x$

Here $\bar y$ and $\bar x$ are mean of the y and x values respectively.

$\bar y=\frac{\sum y_{i}}{n} \\\bar x=\frac{\sum x_{i}}{n}$

The formula to compute the slope is:

$\beta =\frac{\sum (x-\bar x)(y - \bar y)}{\sum (x=\bar x)^{2}}$

And the formula to compute the error is:

$e=y-\alpha -\beta x$

Method 2:

The regression line can be determined using the descriptive statistics mean, standard deviation and correlation.

The equation of the line of best fit is:

$(y-\bar y)=r\frac{\sigma_{x}}{\sigma_{y}} (x-\bar x)$

Here r = correlation coefficient = $r=\frac{Cov (x,y)}{\sqrt{\sigma^{2}_{x}\sigma^{2}_{y}} }$

$\sigma_{x}$ and $\sigma_{y}$ are standard deviation of x and y respectively.

$\sigma_{x}=\frac{1}{n}\sum (x-\bar x)^{2} \\\sigma_{y}=\frac{1}{n}\sum (y-\bar y)^{2}$

3 0

3 years ago

Please help 9, 5, and 10!

bulgar [2K]

Answer:

It wont let me access it

Step-by-step explanation:

4 0

3 years ago

melanie michael has a salaried and exempt job. she earns $825 a week. one week she worked 46 hours. find her gross weekly earnin

valkas [14]

She earns 17.93$ per hour,

3 0

2 years ago

What percent of 120 is 42

poizon [28]

35%.

42/120 = 0.35.

0.35 X 100 = 35. That tells us 42 is 35% of 120.

6 0

2 years ago

8 divided by 2/3 in a word problem

sattari [20]

Answer:

Step-by-step explanation:

8/1 ÷ 2/3

Keep the first fraction and flip the second one: 8×3/ 1×2

Multiply top and bottom: 24÷2

Simplified to be 12

7 0

2 years ago