Answer:(x-3) (x+3)
Step-by-step explanation:
Number is an isosceles triangle number seven is a right angle triangle number 9 I believe is a scalene triangle number 10 is a right angle triangle I also believe 11 is a scalene triangle and I believe number 8 is equilateral triangle
Answer:
10 ft
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
let h be hypotenuse, then
h² = 6² + 8² = 36 + 64 = 100 ( take the square root of both sides )
h =
= 10
The hypotenuse is 10 ft
Subtract the 18 from the 78 then multiply both sides by -1, then divide by 5.