General form of vertex of a parabola is
y = a(x - b)^2 + c where vertex = (b , c)
for this equation the vertex is at (-1,0).
the axis of symmetry is x = -1
Description:
To calculate a percent of a number you must find the total amount or the whole number.
After that Divide the number that you wish to determine the percentage for
Then multiply the value from step two by 100.
To find the percent that is equivalent:
Firstly multiply the decimal number times number 100.
Then add to the answer to the % character.
In this case the answer is 4 percent.
Answer: 4 percent
Hope this helps.
Answer:
Step-by-step explanation:
Let "Hannah" = h, and her sister = s
h = 2s
h + s ≤ 18
Plug in 2s for h in the second equation.
(2s) + s ≤ 18
Simplify
2s + s ≤ 18
3s ≤ 18
Isolate the variable (s). Divide 3 from both sides
(3s)/3 ≤ (18)/3
s ≤ 18/3
s ≤ 6
2) The oldest Hannah's sister can be is <em>6 years</em>
<em>~</em>
Answer:
I'm pretty sure it's D
Step-by-step explanation:
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