Answer:
? = 7.2
Step-by-step explanation:
Remark
Is that a misshapen circle or is it an ellipse? I'm going to assume it is a circle, but if I am wrong, leave a comment. A tangent will meet a diameter's end at right angles which allows you to use the Pythagorean theorem.
Formula
a^2 + b^2 = c^2
Givens
c = 12
a = 9.6
b = ?
Solution
c^2 - a^2 = b^2
144 - 92.16 = b^2
b^2 = 51.84 Take the square root of both sides
sqrt(b^2) = sqrt(51.84)
b = 7.2
Y=mx+b
slope: 3/2
y-intercept: -5
Guessing you want to simplify each,
first one goes to just x
second goes to 4x
third goes to 18x-15
Hello! I am happy to help you.
What you do for this problem is you take the total distance and divide by the times traveled.
1182 / 12 = 98.5.
The trail is 98.5 km long.
Hope this helps.
