Answer:

Step-by-step explanation:
let the 3rd side, the hypotenuse, be x
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² = 2² + 3² = 4 + 9 = 13 ( take square root of both sides )
x = 
X jumpers at <span>£15 each. Total = 15*x = </span><span>£15x
</span>
y shirts at £12 each. Total = 12*y = <span>£12y
Total cost = </span><span>£15x + </span><span>£12y
Total cost = </span><span><span>£(15x + 12y)</span></span>
Answer:
1/4
Step-by-step explanation:
Slope of a line can be found if given two points by using the formula
where
are points on the line.
However, I like to line up the points vertically and subtract then put 2nd difference over 1st difference.
Like this:
( 3 , 3 )
-( -1 , 2 )
---------------------
4 1
So the slope is 1/4.
Answer:
x=50
Step-by-step explanation:
Let's look at the red angle. if a flat line makes the angle 180, and the outer angle is 120, subtract 120 from 180. This will give you 60. Now every angle of a triangle added together will give you the sum of 180. So you already have 60 and 70, which make 130 all together. Subract 130 from 180 - (180-130) - and you'll get the result of 50.
Answer: x=6
Step-by-step explanation:
Just think about how the problem is half