9514 1404 393
Answer:
5x -y = -37
Step-by-step explanation:
One way to find the coefficients A and B is to use the differences of the x- and y-coordinates:
A = Δy = y2 -y1 = 2 -(-3) = 5
B = -Δx = -(x2 -x1) = -(-7 -(-8)) = -1
Then the constant C can be found using either point.
5x -y = 5(-7) -2 = -37
The equation of the line is ...
5x -y = -37
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<em>Additional comment</em>
This approach comes from the fact that the slope of a line is the same everywhere.
The "standard form" requires that A be positive, so we chose point 1 and point 2 to make sure that was the case.
<span>4x^2-36x/x-9
= 4x(x-9) / (x-9)
if 4x = 0, ⇒ x = 0
x-9 ≠ 0
zero of function is 0.
</span>
To make a positive profit p(x)>0 we need to make:
Now we solve this for x:
We have:
a = -2
b = 7
c = -3
We will use formula for quadratic equation:
We got two solutions. One is fraction other is whole number. We will not consider fraction because the amount of muffins sold must be whole number. So our solution is:
x>3
Answer:
<em>Gift 1 ($9) Gift 2 ($10) </em>
Step-by-step explanation:
<em>First we know that Samir had 30 dollars to spend on 3 gifts. If he bought gift 1 for $9, and gift 2 for $10. Then Samir should have $11 for gift 3 that he can spend.</em>
<em>9+10=$19, $30-19=$11 Hope This helps! Mark Brainllest if it is correct!</em>
Answer:
V = 36 ft³
General Formulas and Concepts:
<u>Pre-Alg</u>
- Order of Operations: BPEMDAS
<u>Geometry</u>
- Volume of a Rectangular Prism: V = whl
Step-by-step explanation:
<u>Step 1: Define variables</u>
w = 3 ft
l = 6 ft
h = 2 ft
<u>Step 2: Find Volume</u>
- Substitute: V = (3 ft)(6 ft)(2 ft)
- Multiply: V = (18 ft²)(2 ft)
- Multiply: V = 36 ft³
