Draw a cartesian graph and draw the points in , then see where c should be to get a right angled triangle
1 is 25
2 is 7.42
if you need explanation please comment and let me know
Answer:
26
Step-by-step explanation:
Answer:
a) The discounted prince is 70% of the full price.
b) 32.5 €
Step-by-step explanation:
a) If the full price is 100%, then you subtract 30% which is the discount and you get 70 %.
b) 22.75 is 70% of 32.5
Hi!
Let's first expand the cotangent of theta.
You'll probably know that tangent will be "y/x", or 
, and cotangent is the reciprocal of this, meaning that it is "x/y" or 
.
That means that we are now given this equation.
That'll multiply to:
We'll want a common denominator to add by multiplying 
to both top and bottom of the second term:
Pythagorean Identity states that 
, so substitute that in:
Which simplifies to:
Hope this helps!
