Answer:
x^2+3x+2x+1 is meant to be x^2 +5x+1
8,748 is the answer because multiple all the number and get 8,748
<h2>
Greetings!</h2>
Answer:
y = ![\frac{1}{2}x + \frac{29}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dx%20%2B%20%5Cfrac%7B29%7D%7B4%7D)
Step-by-step explanation:
First, we need to rearrange the equation to make it y = mx + c
4x - y = 3
y + 3 = 4x
y = 4x -3
So the slope of the line is 4.
The slope of a line perpendicular to an equation is:
![\frac{-1}{gradient}](https://tex.z-dn.net/?f=%5Cfrac%7B-1%7D%7Bgradient%7D)
So the slope of the perpendicular line is:
= -0.25
Now to find the equation of a line you can use the following equation:
y - y₁ = m(x - x₁)
Where y₁ is the y-coordinate, x₁ is the x-coordinate and m is the gradient. Plug the values in:
y₁ = 6
x₁ = -5
m = ![\frac{-1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B-1%7D%7B4%7D)
y - 6 =
(x - - 5)
To get rid of the fraction we need to multiply the whole equation by 4:
4y - 24 = -1(x - - 5)
The two negatives cancel out:
4y - 24 = -1(x + 5)
Multiply the brackets out:
4y - 24 = -x + 5
Now, to rearrange the formula back into y = mx + c
Move the -24 over to the other side making it a +24:
4y = 2x + 5 + 24
4y = 2x + 29
Divide everything by 4:
y = ![\frac{2}{4}x + \frac{29}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B4%7Dx%20%2B%20%5Cfrac%7B29%7D%7B4%7D)
y = ![\frac{1}{2}x + \frac{29}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dx%20%2B%20%5Cfrac%7B29%7D%7B4%7D)
<h2>Hope this helps!</h2>
So if she still has $27.12, then during her call, she used a total of $2.88.
$2.88 = 288 cents.
Therefore 288 divided by 6 = 48
Therefore the answer is 48 minutes.
To simplify the equation, we have y = ![\frac{3}{4x^2 + 24x} + 8](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4x%5E2%20%2B%2024x%7D%20%2B%208)
<h3>How to simply the expression</h3>
Given the expression
y-8 = 3/4x [x-(-6)]
First, expand the bracket
= ![\frac{3}{4x^2 + 24x}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4x%5E2%20%2B%2024x%7D)
Make 'y' the subject of formula
y = ![\frac{3}{4x^2 + 24x} + 8](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4x%5E2%20%2B%2024x%7D%20%2B%208)
Thus, to simplify the equation, we have y = ![\frac{3}{4x^2 + 24x} + 8](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4x%5E2%20%2B%2024x%7D%20%2B%208)
Learn more about algebraic expression here:
brainly.com/question/4344214
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