<span>3x^2 - 4 = 7x is the standard form. To get standard form into quadratic you must have one side of the equation equal zero. The easiest way to so is subtracting 7x on both sides of the equation.
</span><span>3x^2 - 4 = 7x
-7x -7x
3x^2 -7x - 4 = 0
So, </span>3x^2 -7x - 4 = 0 is the quadratic form.
Hey, let’s use y to represent Desmond’s height. Since we are trying to find Desmond’s height, we”ll start off with y =
We know that Desmond’s height is equal to Niki’s height + 3 inches. So the answer would be, y = x + 3.
Hope this helps :)
Answer:
x = 8
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other two sides, that is
x² + 6² = 10²
x² + 36 = 100 ( subtract 36 from both sides )
x² = 64 ( take the square root of both sides )
x = 
= 8
Answer:
Mindy=191
Amy=299
Step-by-step explanation:
first you want to divide $490 in half to see what each person has. Thats 245 and since Amy has $54 more, you minus 54 from 245 to get 191. So while Mindy has 191, Amy has 299
