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3 years ago

Write an equation for the line that passes through the points (4,8) and (6,2)

Mathematics

1 answer:

Ronch [10]3 years ago

8 0

Answer:

The equation for the line that passes through the points (4,8) and (6,2)

is y + 3 x -20 = 0

Step-by-step explanation:

Here, the given points are (4,8) and (6,2)

So, the slope of the equation joining two points is $m = \frac{y_2- y_1}{x_2 - x_1} = \frac{2-8}{6-4} =\frac{-6}{2} = -3\\$

⇒Slope of the given line is m = -3

Now, by POINT SLOPE FORMULA:

Equation of a line is (y - y0) = m (x-x0)

Here, equation of the line with (x0, y0) = (6,2) is

y - 2 = (-3)(x - 6)

or, y -2 = -3x + 18

⇒ y+ 3x -20 = 0

Hence, the equation for the line that passes through the points (4,8) and (6,2) is y+ 3x -20 = 0

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there are 4 coins. you get a dollar for every head. all four coins are flipped. what is the outcome? what about if you can choos

weqwewe [10]

The outcome for the flip is 2.

Probability:

Probability refer the possibility of the event required.

The probability formula is defined as the possibility of an event to happen is equal to the ratio of the number of favorable outcomes and the total number of outcomes.

Given,

There are 4 coins.

You get a dollar for every head. all four coins are flipped.

To find the outcome of the flips.

The possible outcomes from the initial flip are:

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"3 heads" x 4

"2 heads" x 6

"1 heads" x 4

"0 heads" x 1

This gives an expected return of

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So, the outcome is 2.

Either if you keep it then you have 2 as outcome of the flips, otherwise if you reflip the coins then you will get the same probability for it also.

To know more about Probability here.

brainly.com/question/11234923

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Eddi Din [679]

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3 years ago

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Dafna1 [17]

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3 years ago

The four digit numeral 3AA1 is divisible by 9. What digit does A represent

dexar [7]

Answer:

A = 2, the number is 3221

Step-by-step explanation:

In order for the number to be divisible by 9, the sum of it's digit has to be divisible by 9.

In our case, $4+A+A+1= 9k$ where k is an integer. the easiest way happens when k=1

$5+2A= 9 \rightarrow 2A=4 \rightarrow A = 2$

Higher values of k will likely most work (with k=2 you get A to be a non-integer, which can't work since it's the digit of a number, and with higher values of K you're not getting a number in base 10.

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2 years ago