Answer:
23 floors
Step-by-step explanation:
Subtract 7 from 30:
30 - 7
= 23
So, she traveled 23 floors.
Answer:
x = 18
Step-by-step explanation:
The equation to solve is:
<em><u>This basically means, "what number" (x), divided by 1.2 would give us 15??</u></em>
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We can cross multiply and simply solve for x:
Correct answer x = 18
X = 90-22
x = 68
..............
Answer:
Since b^2 -4ac = 256 we have 2 real distinct root roots
Step-by-step explanation:
4x^2+12x=7
We need to subtract 7 to get it in the proper form
4x^2+12x-7=7-7
4x^2+12x-7=0
The discriminant is b^2 -4ac
when the equation is ax^2 +bx+c
so a =4 b=12 and c=-7
(12)^2 - 4(4)(-7)
144 +112
256
If b^2 -4ac > 0 we have 2 real distinct roots
If b^2 -4ac = 0 we have one real root
If b^2 -4ac < 0 we have two complex root
Since b^2 -4ac = 256 we have 2 real distinct root roots
Answer: Hope this helps, I think I did the right math if not I'm sorry
2/6 x 1/6 = 1/18
Step-by-step explanation: