Assuming you meant square root of 90 it would be
90 equals 3 times the square root of 10
√90 = 3√10
x = 50
The angles shown are vertically opposite and thus equal
so 3x - 30 = 2(x + 10)
3x - 30 = 2x +20
subtract 2x from both sides
3x - 2x - 30 = 20
x - 30 = 20
add 30 to both sides
x = 20 + 30 = 50
P = $2000
R = 5.4%
T = 2 yrs
Interest = PTR/100 = 2000*2*5.4/100 = $216
Balance = $2000 + $216 = $2216
198 is your answer. Hope this helps!
-Belle
I think it's right and scalene
It's a right triangle because it has a right angle and it's a scalene triangle because it has three unequal sides.