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4 years ago

Drag each tile to the table to multiply (6x-y) (2x-y+2).

Mathematics

2 answers:

natulia [17]4 years ago

8 0

You do the thing and right it correct

Mazyrski [523]4 years ago

4 0

Answer:

-12x^2-8xy+12x-2y+y^2

Step-by-step explanation:

$(6x-y)(2x-y+2)\\=12x^2-6xy+12x-2xy+y^2-2y\\=12x^2+y^2-8xy+12x-2y$

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Use linear regression to find the equation for the linear function that best fits this data. Round both numbers to two decimal p

natta225 [31]

Answer:

The equation of the linear function that best fits the data is,

y = 18.66x + 66.87.

Step-by-step explanation:

The line of best is of the form: y = mx + b.

Here, m = slope of the line and b = intercept.

The formula to compute the intercept and slope are:

$b=\frac{\sum Y.\sum X^{2}-\sum X.\sum XY}{n.\sum X^{2}-(\sum X)^{2}}$

$m=\frac{n.\sum XY-\sum X.\sum Y}{n.\sum X^{2}-(\sum X)^{2}}$

Consider the table below for the values of ∑ X, ∑ Y, ∑ X² and ∑ XY.

Compute the value of intercept and slope as follows:

$b=\frac{\sum Y.\sum X^{2}-\sum X.\sum XY}{n.\sum X^{2}-(\sum X)^{2}}=\frac{(793\times91)-(21\times3102)}{(6\times91)-(21)^{2}} =66.867$

$m=\frac{n.\sum XY-\sum X.\sum Y}{n.\sum X^{2}-(\sum X)^{2}}=\frac{(6\times3102)-(21\times793)}{(6\times91)- (21)^{2}} =18.657$

The line of best fit is:

$y=mx+b\\y=18.657x+66.867\\y=18.66x+66.87$

Thus, the equation of the linear function that best fits the data is y = 18.66x + 66.87.

3 0

3 years ago

Can someone help me with these coordinates (brainliest)

elena55 [62]

Answer:

its the 3rd one

Step-by-step explanation:

4 0

4 years ago

From Seattle to Denver is 4 inches. If the scale is 1in = 400 miles,

Hoochie [10]

1 in = 400 miles

4 in = 400 x 4 = 1600 miles

answer: A

3 0

4 years ago

A line passes through the point (4,-2) and has a slope of 5/2 write an equation in point slope form for this line

murzikaleks [220]

Point slope form y-(-2)=5/2(x-4)

3 0

4 years ago

It is estimated that there are 22 deaths for every 10 million people who use airplanes. A company that sells flight insurance pr

Alex Ar [27]

Answer:

The insurance company can make $0.78 for each policy that it sells

Step-by-step explanation:

The loss incurred to the insurance company for each death claim is:

$L = \$1-\$100,000=-\$99,999$

This event has a 22 in 10 million probability of happening.

The gain for the company for each policy not claimed is:

$G= \$1$

This event has a 9,999,978 in 10 million probability of happening.

The expected value is:

$EV =\$1*\frac{9,999,978}{10,000,000} -\$99,999*\frac{22}{10,000,000} \\EV=\$0.78$

Therefore, over the long run, the insurance company can make $0.78 for each policy that it sells.

7 0

3 years ago