Answer:
y/2 = tan(60) => y = 2 tan(60) = 2sqrt(3) = 3.464
Step-by-step explanation:
What you did is set πr² equal to A then divide the π by both sides so it will cancel on the right side and keep A over π then square root r to cancel the exponent of 2
There are two ways:
One if you have a graphing calculator (TI-84 plus) you can go to stat then edit then type in the -40 and -90 on the left and the -120 and 60 on the right. The press stat again and go to the right to calc the down to linreg (ax +b) and go down to calculate amd press enter.
Your answer is y = -3.6x+-264
option two is by hand
the formula is y1-y2 divided by x1-x2
I believe that answer is c
Answer:
3 : 5
Step-by-step explanation:
Given 2 similar figures with linear scale factor = a : b , then
ratio of areas = a² : b²
Here ratio of areas = 9 : 25 , thus
linear ratio = : = 3 : 5