Zinc = 7/18
Divide 4.9 by 7 = 0.7
Multiply by 18 = 12.6
The answer is 12.6 lbs of alloy. Sorry if I'm wrong
The first one- the rest don’t add up
It should be 18.84. To find the circumference of a circle you would times the diameter by pi or 3.14 but since its the radius you would need to times pi (by the radius and times that by 2. so 3 times 2 is 6 and 6 times 3.14 is 18.84
Answer:
I did the first one on paper
Step-by-step explanation:
i also sent one page of my personal notes on right triangle Pythagoerean thereom I hope this helps
5x2(3x-1)+2(3x-1)factoring furhter gives(5x2+2)(3x-1)