For δabc, ∠a = 8x - 10, ∠b = 10x - 40, and ∠c = 3x + 20. if δabc undergoes a dilation by a scale factor of
1
2
to create δa'b'c' with ∠a' = 6x + 10, ∠b' = 70 - x, and ∠c' =
10x
2
, which confirms that δabc∼δa'b'c by the aa criterion?

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Analyze the graph of the cube root function shown on the right to determine the transformations of the parent function. then, determine the values of a, h, and k in the general equation. y=a3x-h+k h= . k= done 000000l o 7 of 8

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)