Answer: 8a^2 + 2c^2 - 2c
Step-by-step explanation: It is a simple addition between 6a^2+2a^2. The other terms remain the same.
Answer:
1. C
2. A
3. D
4. B
Step-by-step explanation:
Hopefully its correct
Answer:
0.46% is the answer sorry for being late
Step-by-step explanation:
took the test :D hope this helps
<h2>
Answer:</h2>
<h2>
Step-by-step explanation:</h2>
The graph of this parabola is shown below. From this graph we know that:
VERTEX:
DIRECTIX:
Since the vertex lies on the origin and the parabola opens upward, then the standard form of this parabola is:
So:
Then the directrix is:
Let the actual value of the stool be x.
So if the carpenter sells the stool x rupees he neither loses, now wins anything.
67.50 is the value x - 10% of x, that is:
67.50=x-0.1x
67.50=0.9x
x=67.50/0.9=75 (rupees) is the actual value of the stool.
Selling the stool for 82.50 rupees, the carpenter clearly would make a profit, say of y% of that actual value, that is y%*75.
So using the same method:
82.50=75+y%*75
y%*75=82.50-75=7.5
we can make the calculations, but clearly 7.5 is 10% of 75
Answer: 10% gain.
