C is irrational because there is no definite square root for 15 whereas the square root of 36=6
As shown in the image, we have a 30 degree angle and x, which is what we want. By doing tan30, we can find x, so tan30=x/70 and 70*tan30=x= 70*sqrt(3)/3. 120-x=height of first tower = 120-(70*sqrt(3)/3) = roughly 79.59
Answer:
The answer to the first one is number 2
Step-by-step explanation:
They are parralel because they do not cross either in the front or in the back
Answer:
Domain is the set of inputs that will give you a defined output.
In example, f(x)=5/x, the domain would be all real numbers except for 0, because if it would be 0, it would be 5/0 which would be undefined.
Range is the set of outputs that are possible.
In example, f(g)=g(0), the range would be 0.
Answer:
(B)permits only certain substances to leave but all to enter
