Answer:
it is A
Step-by-step explanation:
Vertical angles are angles that are opposite eachother

The axis of symmetry for parabola is x = 3.
Using derivative to solve for axis od symmetry is easier.
Answer:
1,260 mg of copper.
Step-by-step explanation:
This is because in a 3 to 1 ratio, the first number has to be 3 times the second number which is just multiplied by one. since zinc is the second number, it stays the same but the copper as to be 3 times the amount of zinc so 420 mg times 3 which equals 1,260.
I don't really understand the question but I'll answer how I'm reading it.
9 x 105 = 945
945 x 17000 = 16,0650,000
Answer:
i need a photo this makes no sense
Step-by-step explanation: