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4 years ago

Some please explain and help really stuck

Mathematics

2 answers:

timofeeve [1]4 years ago

6 0

Positive linear association

Dennis_Churaev [7]4 years ago

6 0

Answer:

Negative Linear association maybe I'm sorry if its not true

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Do the points A(1,3) B(4,2) C(-2,4) lie on the same line? Explain your answer. Show all work.

Jet001 [13]

We can see that

$Slope\ of\ AB=Slope\ of\ BC=Slope\ of\ AC$

The given points are on same line.

Further explanation:

There are two methods to find if the given points are on same line

The slope method: If the points are on same line the slopes of two pairs of points will be same
Area of triangle method

Given points are:

A(1,3) B(4,2) C(-2,4)

We will find the slope of AB, BC, and AC

So,

$m=\frac{y_2-y_1}{x_2-x_1}$

$Slope\ of\ AB=\frac{2-3}{4-1} \\=-\frac{1}{3}$

$Slope\ of\ BC=\frac{4-2}{-2-4}\\ =\frac{2}{-6}\\=-\frac{1}{3}$

$Slope\ of\ AC= \frac{4-3}{-2-1} \\=-\frac{1}{3}$

We can see that

$Slope\ of\ AB=Slope\ of\ BC=Slope\ of\ AC$

The given points are on same line.

Keywords: Slope, Co linear points

Learn more about slope at:

#LearnwithBrainly

3 0

4 years ago

-3x+7=6x-2 What would the variable be?

Solnce55 [7]

5 0

4 years ago

What is the GCF of <br><br> 2X^3+3X^2+8X+12

tia_tia [17]

Answer:

The GFC is 1

Step-by-step explanation:

5 0

3 years ago

K=1/2 mv squared, determined m when v=30 and k=4500.

WITCHER [35]

Given the expression:

$\text{ k = }\frac{1}{2}mv^2$

At v = 30 and k = 4,500 , let's determine m.

$\text{ k = }\frac{1}{2}mv^2$ $\frac{2k}{v^2}\text{ = m }\rightarrow\text{ m = }\frac{2k}{v^2}$

We get,

$\text{ m = }\frac{2k}{v^2}$ $\text{ = }\frac{2(4,500)}{(30)^2}$ $\text{ = }\frac{9,000}{900}$ $\text{ m = 10}$

Therefore, m = 10.

7 0

2 years ago

I need help with the first and second one please

blsea [12.9K]

Answer: D - 3 + 2√2 + √3
Solution: For the first question, we can just simply add up all of the terms to find the perimeter. Keep in mind that you cannot collect like terms for √3 and√2, since they are not alike. You have to keep them separate.

Hence, the only via solution is (D) 3 + 2√2 + √3

Answer: C - √10 + √13 = √23
Explanation: If we have two different terms inside the square root, we are not allowed to add them together; yes, you can multiply and divide, but not add or subtract.

For (A), if we square a number inside the root, we simply remove the square root sign, so that is correct.
For (B), we are allowed to multiply two square root numbers inside to form one unit.
For (D), we are allowed to divide two square root numbers inside to form one unit.

6 0

3 years ago