Answer:
y = 3x + 2
Step-by-step explanation:
"When x is zero in a direct variation equation y will also be zero. ... Equations of the form y = kx + b where b is a number other than zero are not direct variation equations because when x is zero in any of these y is not zero. Normally direct variation equations are written as y = k•x or just y = kx."
in short, y = 3x + 2 can't be turned into y = kx
you could also immediately tell it's y = 3x + 2 because it includes + 2
420÷70%
=£600
the original price of the ring is £600
C2 -a2 =b2
if a triangle is 20ft high with the hypotenuse 25ft
a2 c2
23.5ft
b2
i don't do this traditionally i work it a very long way thats easier for me but this is my go to ex. that i show people and it is correct and easy to visualize
but i hope it helps you some
This is a question that will require Pythagoras' theorem as you want to find the length of a diagonal of a triangle and are given the measurements of two sides. I have attached a picture of how to solve this problem.
To the nearest 10th of a foot, the answer is 77.6ft