Answer:
x^2 -2x = 4x+1
2x^2 +12x = 0
9x^2 +6x -3=0
Step-by-step explanation:
A quadratic equation has the highest power of x being squared
x^2 -2x = 4x+1
2x^2 +12x = 0
9x^2 +6x -3=0
These are all quadratic equations
The answer is A because playing sport is not affected by playing sports (for more detail go to https://www.mathsisfun.com/data/probability-events-independent.html)
If it's not A then it's B
If x to the 12th power is divided by x to the 9th power:
Since they share same bases, and are being divided, it would be the same as x^{12 - 9), or x^{3}
Now, simply find the cube root of 125, which is 5.
Therefore, the number (x) must be equal to 5.
<em>Hope this helps! :)</em>
Consider that the initial length and width of the rectangle are given as,
After the length is increased by 10%, the new length (L) of the rectangle is calculated as,
After the width is decreased by 10%, the new width (B) of the rectangle is calculated as,
Then the area (A) of the new rectangle is calculated as,
Thus, the new area of the rectangle is 396 square meters.
Answer:
There is an error in the question.
All angles in an equilateral triange are 60º
