First we raise both members of the equality to the square:
(√-4x) ^ 2 = (100) ^ 2
Then, we solve:
-4x = 10000
We cleared x in the last instance
x = 10000 / (- 4)
x = -2500
answer:
the solution of √-4x=100 is
A) x = –2500
Answer:
He should have divided 12 ÷ 3 first.
Step-by-step explanation:
Following PEMDAS/BODMAS, the first step is solving equations in parentheses. Since the parentheses contain a multi-step equation, Jay needs to follow PEMDAS for inside the parentheses as well. Instead of adding 3+12 first, he should have done division first (12 ÷ 3).
How the problem should be solved:
-3 × (3 + 12 ÷ 3) - 4
-3 × (3 + 4) -4
-3 × 7 - 4
-21 - 4
-25
The best thing to do is to rewrite the fractions as decimals
-2/3 is approx. equal to -0.6666667
So a little past half way (to the left) between -1 and 0
1 1/5 is 1.5 so that is right between 1 and 2
Hope this helps :)
The answer would be where the points meet.
In this case it would be (1,-1)
I believe it is 1/2 or 2/1 but i am not positive <span />
