Answer:
60
Step-by-step explanation:
We are given the triangles are congruent, that means the angles are the same measurement
<A = <X
<B = <Y
<C = <Z
We know A = 50 so X = 50
We know <Y = 70 so < B = 70
The three angles of a triangle add to 180
<A + <B + <C = 180
Substituting into the equation
50 + 70 + <C = 180
Combining like terms
120 + <C =180
Subtracting 120 from each side
120-120 +<C =180-120
<C = 60
Since x=2, you plug it into your equation by replacing all the x with 2. You would then solve it by following the PEMDAS rule.
y= 4(2) + 2(2)^2 - (2)^3
y= 4(2) +2(4) - 8
y= 8 + 8 - 8
y= 16 - 8
y= 8
350000 = 270000(1.05)^n
1.05)^n = 350000/270000 = 1.296296
n = log 1.296296 / log 1.05 = 5.3 years answer
9 and a fraction would be the answer
