a school wants to make a new playground by cleaning up and abandoned lot that is shaped like a rectangle. they give the job of p
1 answer:
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9514 1404 393
Answer:
49
Step-by-step explanation:
Put the variable values in place of the corresponding variables, and do the arithmetic.
x² +3(x +y) =
5² +3(5 +3) = 25 +3(8) = 25 +24 = 49
Answer:
Step-by-step explanation:
Let's call the balloon's height above the ground and
the horizontal distance between the balloon and the first milepost.
If the angle of the depression of this milepost is 24 degrees, we can say the following:
<em>(equation 1)</em>
For the next milepost, the horizontal distance between the balloon and tihs milepost will be and the angle of depression will be 20 degrees, so we can say the following
then, replacing from <em>equation 1</em>
Resolving, we'll find the value of
So, the balloon's height above the ground is 1.99miles