Answer: 5
Step-by-step explanation:
Let the number = x.
4x + 9x = 65
13x = 65
x = 5
40+1
50-9
4(10)+1
410/10
There are a lot of answers
#3 describes an isosceles triangle.
#5 describes an equilateral triangle.
#7 describes a right triangle.
Find TU with Pythagorean theorem:
TU=√6²-3²=√36-9=√27=3√3
Now you can find y:
y=√TU²+9²=√27+81=√108=6√3
