Answer: 45°
Step-by-step explanation: add the angles together to get a total of 180°
Refer to the edited figure.
Triangles ABC and A'B'C' are similar because of AAA.
Also,

Therefore
ΔA'B'C' is 1/3 the size of ΔABC.
This means that the scale factor from ΔABC to ΔA'B'C' is a 3-factor reduction.
Answer: reduction; one-third.
The dilation is a reduction.
The scale factor of the dilation is one-third.
9514 1404 393
Answer:
y = 1
Step-by-step explanation:
Recognize that 25 and 125 are powers of 5 and rewrite the equation in terms of powers of 5.
The applicable rules of exponents are ...
(a^b)^c = a^(bc)
(a^b)/(a^c) = a^(b-c)
(a^b)(a^c) = a^(b+c)
__
Your equation can be written as ...

Now this can be solved as an ordinary linear equation.
8 = 8y . . . . . . add 5y to both sides
1 = y . . . . . . . divide by 8
The solution is y = 1.
Answer:
1. Equation: 1 1/2 x 1 3/4
Solution: 2 5/8
2. Equation: 1 1/3 x 2 1/4
Solution: 3
Step-by-step explanation:
Hope this helps.