HELP MEEEE FAST PLZ MY MOM THINKS IM SMART BUT I DON'T GET THIS AHHHH HELP
1 answer:
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We can use the formula for a parabola: 
where
is the origin of the parabola and 
is some constant scaling factor.
We are given that the center of the arch on the bridge is
. This is our origin. So our equation is:
Now we just need to find c. We can do this by plugging in one of the other points given:
So our final equation for the arch of the bridge is:
We are given that the center of the arch on the bridge is
Now we just need to find c. We can do this by plugging in one of the other points given:
So our final equation for the arch of the bridge is:
Answer:
The first number is 138.
Step-by-step explanation:
Let the first number be <em>x.</em>
<em />
Then since they are consecutive numbers, the second number will be (<em>x</em> + 1), the third (<em>x</em> + 2), the fourth (<em>x</em> + 3) and the fifth being (<em>x</em> + 4).
We are given that their sum is 700. Therefore:
Solve for <em>x</em>. Combine like terms:
Subtract 10 from both sides:
Divide both sides by five. Therefore:
The first number is 138.