Answer:
Step-by-step explanation:
<u>Point-slope form: </u>
- <em>y - y1 = m(x - x1)</em>
<u>Slope formula:</u>
- <em>m = (y2 - y1)/(x2 - x1)</em>
<u>Given points:</u>
<u>Finding the slope:</u>
- m = (13 - (-2))/(3 - 0)
- m = 15/3
- m = 5
<u>Using point 1</u>
- y - (-2) = 5(x - 0)
- y + 2 = 5x
Find the prices per ounce by dividing the dollars by the number of ounces:-
1.79 / 15 = 0.1193 dollars per ounce
1.49 / 12 = 0.1242 dollars per ounce
So the first one is the better buy.
(x+b/2a)^2-(b^2-4ac)/2a=0
Step 2:
Re-write the expression:
(x+b/2a)^2=(b^2-4ac)/4a^2
Step 3:
get the square root of both sides:
x+b/2a=sqrt[(b^2-4ac)/4a^2]
Step 4:
Simplifying we get:
x+b/2a=sqrt[b^2-4ac]/2a
Step 5
Make x the subject:
x=-b/2a+/-sqrt[b^2-4ac]/2a
Simplify
4b−7−15b+3
=4b+−7+−15b+3
Combine Like Terms:
=4b+−7+−15b+3
=(4b+−15b)+(−7+3)
=−11b−4
Answer:
8w - 8 = 54
Step-by-step explanation:
