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3 years ago

Randomly distributing 45 pencils and 35 markers to his students. what is the probability that the first item he hands out will

Mathematics

1 answer:

Dominik [7]3 years ago

3 0

If he hands out pencils will be 45/80 =
If he hands out markers will be 35/80

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Two trains, Train A and Train B, weigh a total of 207 tons. Train A is heavier than Train B. The difference of their weights

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Answer:

A) 184.5 B)22.5

Step-by-step explanation:

207/2= 103.5

A is heavierand the diference of their weights is 81 tons A is 103.5 plus 81 tons or 184.5

And B is 103.5 minus 81 tons or 22.5 tons

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3 years ago

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You have to add all of them together for money

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3 years ago

What is the value of this expression of his expression of c=4

natali 33 [55]

Answer: c=4

Step-by-step explanation: the answer is 4 because c=4 and that is what c is.

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3 years ago

Write an equation in standard form for the line, where the points (-2, -1) and (0, 4) are on the line

DedPeter [7]

Answer:

An equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

Step-by-step explanation:

Given the points

(-2, -1) and (0, 4)

The slope between two points

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-2,\:-1\right),\:\left(x_2,\:y_2\right)=\left(0,\:4\right)$

$m=\frac{4-\left(-1\right)}{0-\left(-2\right)}$

$m=\frac{5}{2}$

Writing the equation in point-slope form

As the point-slope form of the line equation is defined by

$y-y_1=m\left(x-x_1\right)$

Putting the point (-2, -1) and the slope m=1 in the line equation

$y-\left(-1\right)=\frac{5}{2}\left(x-\left(-2\right)\right)$

$y+1=\frac{5}{2}\left(x+2\right)$

$y=\frac{5}{2}x+4$

Writing the equation in the standard form form

As we know that the equation in the standard form is

$Ax+By=C$

where x and y are variables and A, B and C are constants

$y=\frac{5}{2}x+4$

$\frac{5}{2}x-y=-4$

Therefore, an equation in standard form for the line is:

$\frac{5}{2}x-y=-4$

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3 years ago

Describe the relationship between and when the two lines are perpendicular to . Also describe the relationship between and when

alexdok [17]

Answer:

Perpendicular line is straight

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3 years ago

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