A widely-known theorem can be used for this, but only if it is a right triangle (let's assume it is).
Pythagorean Theorem, or <span>a<span>^2+b^2=c^2 (the ^ means it is brought up to that power, so it would be a(squared) + b(squared) = c(squared))
Let's plug in our numbers into this equation to see what we get,
(Assuming that 10 and 15 are the legs of the triangle.)
10^2 + 15^2 = c^2 (c is your hypotenuse, or your longest side of the triangle.)
10^2 = 100 & 15^2 = 225
100 + 225 = c^2
325 = c^2
(square root)325 = c
</span></span>18.03 ≈ c<span>
So, your final equation should look like this:
10^2 + 15^2 = 18.03^2
Which it does! 100 + 225 = 325
</span><span>What must be true about the length of the third side?
The third side must equal 18.03, <u>only</u> if it is a right triangle.
</span>
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Answer:
y=4x+30
In 7 months, the total cost will be $58.
Step-by-step explanation:
Since the monthly fee is 4, it's going to be the constant, or the slope. And 30 is a one time fee, so it's the y-intercept.
How many Months?
58-30=28
28/4=7
So in 7 months.
The answer simplifies is this -8r-40r^2
Answer:
I answered ur question in ur previous post
Good Luck!