A + [a + b - a - (2a- b)]
= a + (b - 2a + b)
= -a + 2b
First convert the fraction into a decimal.If the division ends in a repeating decimal, you can stop after a certain number of decimal places and round off.
Answer:
Step-by-step explanation:
You have 3 points and need to find ax2 + bx + c = y. First use (0,2). x is zero, so y = 2 = c. You have c. Now put (-1,0) into the equation. 0 = 1a -b + 2. Rearrange so you get b = a + 2. Now use the other point. a*(-2 squared) + b*(-2) + 2 = 0. Simplify and substitute (a + 2) for b and you will have the answer.
Answer:
see below
Step-by-step explanation:
The rate of change is
f(x2) - f(x1)
------------------
x2-x1
Since this is a line we can pick any two points on the line, one befre x=1 and one after x=1
Let x=0 and x=2
f(2) - f(0)
-------------
2-0
4-2
-------
2
2/2
1
The rate of change is 1
The pythagorean theorem is a^2 + b^2 = c^2, with c^2 being the hypotenuse (or longest side).
So a^2 + b^2 = 26
Since we're dealing with a triangle that was cut from a square, we also know that sides a and b are the same length. So, we can simplify our equation:
2a^2 = 26
Next, try to get a by itself, first by dividing both sides by 2 and then taking the square root of both sides:
a^2 = 13
a = the square root of 13
So, the side length of each piece will be the square root of 13 (approximately 3.5 inches).