Can ya help me with the answer

Mathematics

1 answer:

Sergio039 [100]3 years ago

3 0

23.55 feet is your answer

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Write the equation of a line that passes through the points (0, -2) and (4, -5). Answer MUST be in standard form: Ax + By = C.

shutvik [7]

The slope-intercept form:

$y=mx+b$

m - slope

b - y-intercept → (0, b).

We have the points (4, -5) and (0, -2) → y-intercept → b = -2.

The formula of a slope:

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

Substitute:

$m=\dfrac{-2-(-5)}{0-4}=\dfrac{-2+5}{-4}=\dfrac{3}{-4}=-\dfrac{3}{4}$

Therefore we have the equation of a line

$y=-\dfrac{3}{4}x-2$

Convert to the standard form: $Ax+By=C$

$y=-\dfrac{3}{4}x-2\qquad\text{multiply both sides by 4}\\\\4y=-3x-8\qquad\text{add 3x to both sides}\\\\\boxed{3x+4y=-8}$

6 0

3 years ago

Read 2 more answers

What's the equation of -9-11=29+4

Hunter-Best [27]

-9 - 11 = 29 + 4

First, add -9 - 11 to get -20.
$-20 = 29 + 4$
Second, add 29 + 4 to get 33.
$-20 = 33$
Third, -20 = 33 is false, so there is not a solution.

Answer: No solution

7 0

3 years ago

James packs books into boxes. He packs 20 books into each box. James packs x boxes of books. write an expression, in terms of x,

Paraphin [41]

There are 20 books in each box.
If each box has 20 books, then the number of books is 20 times the number of boxes. (20 books: 1 box, 40 books: 2 boxes...)

So, using mathematical terms, the number of books is equal to the number of boxes x 20.

Here, it says James packs x boxes of books. This means that we call the number of boxes, x. X could be 1,2,3, or any other number.

So, since there are 20 times as many books as boxes, the number of books is 20 times x.

In math terms, this is written like 20x.
So the answer is 20x.

3 0

4 years ago

Need help with this problem

Ber [7]

$\frac{2x}{x + 3} - \frac{3}{x - 4}$