The formula of a perimeter is:2(L+l) or
2*L+2*l
D. Donatello
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Easy!
All you have to do is make a number lower or higher according to the symbols and make it unique.
For example, on letter B, it says ____ - ____ = <1
So what you want to do is make it 0 - 0 = <1
Answer: Choice A
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Explanation:
One shaded region is below the parabola, and the other shaded region is below the line. They both overlap outside the parabola, but under the straight line.
Since both shaded regions are below their respective boundaries, this means that we'll be using "less than" signs for each inequality. The solid boundary lines indicate "or equal to" is part of that as well.
Because of this, the answer is between A and D since both involve inequality signs that have "less than or equal to".
However, we can rule out choice D since the inequality
would have the boundary line
, and this boundary line has a positive slope. But notice how the red diagonal line slopes downward as we read from left to right. Therefore, the red line must have a negative slope. Luckily, choice A has one of the boundary lines as y = -x+3 to fit the description. So that's why choice A is the answer.
The ratio would be 4:6 because 4 of the marbles are pink and 6 (the rest) are blue