If you want it to be easier to add, just do it like this: 200,000+ 30,000= 230,000
If you want me to be more specific, put this: 201,000+ 29,000= 230,000
It really doesn't matter because both estimates are the same answer, so you can put whichever one. Hope this helps
Thats my answer :)))
Answer:
506.7 cm²
Step-by-step explanation:
The amount of cardboard needed would be the surface area of the cone,
S= pi(r)(l+r) where r is the radius and l is the slant height.
You can find l using the Pythagorean theorem. l²=r²+h² which is l²=6²+20² and you get l = √436.
Plug r and l into the equation: S = 6pi(√436 + 6) = 506.7 cm²
Let me know if you have any questions about my steps!
Answer:
I cant answer it because you cant copy it it doesnt allow me
You will lose money. Because $50 to make subtract $45 to sell (50-45) leaves you losing $5.
Answer:
atleast 385
Step-by-step explanation:
Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.
Population std deviation = 
Sample size =
STd error of sample mean = 
Margin of error for 95% would be Critical value ( std error)
Here since population std dev is known we can use Z critical value= 1.96
Sample size should be atleast 385
