Answer:
X = 1
Step-by-step explanation:
2x^2 + x - 1 = 2
2x^2 + x - 3 = 0
2x^2 + 3x -2x - 3 = 0
x(2x+3) -1 ( 2x+3) = 0
(x-1) (2x+3) = 0
x-1=0
x=1
2x+3=0
2x=-3
x=-3/2.
Answer:
see explanation
Step-by-step explanation:
[ 17, + ∞ ] are used to indicate that the values inside are equal to the 2 limits, that is that x can equal 17 or + ∞
However, this as not the case as x > 17 indicates x is greater than 17 but not equal to it. This is also true for + ∞
To represent this situation parenthesis is used, that is
(17, + ∞ )
Remember this, DOOP
This stands for decimal, two zeros, then percent.
So, what you do is, since 1.513 is a decimal, you move the decimal two places to the right. You get 151.3
Therefore, 1.513 is 151.3%
Answer:
500 rocks
Step-by-step explanation:
25*20 = 500
