under a rotation about the origin of 180°
a point (x, y ) → (- x, - y )
hence D is correct, both the x and y coordinates of the points on ΔA'B'C' have opposite signs from the corresponding points on ΔABC
Evaluate the trigonometric expression using sum and difference formulas.
Answer: 
Step-by-step explanation:
I hope you mean y = x² - 12 and not y = 2x - 12.
You switch the y and x variables:
x = y² - 12
And solve for y:
x + 12 = y²
Bananas are $0.49 per pound, and you want to buy 5.5 pounds of bananas.
0.49 x 5.5 = 2.695 <span>≈ 2.70
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So the final answer is 2.70 dollars for 5.5 pounds of bananas.
Answer:
2.2916
Step-by-step explanation:
Imagine bannanas flying into your room? I mean I couldn't imagine that either but im just saying
