Answer:
y=12x 12=k k=constant of Proportionality
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
prove: sin²x cos²y - cos²x sin²y ≡ sin²x - sin²y
we notice that the Right side only has sin² functions, hence we can start by trying to remove the cos² functions from the Left side.
Recall the identity: sin²α + cos²α = 1 , can be rearranged to give us:
cos²α = 1 - sin²a.
If we apply this to the left side of our equation, then
cos²y = 1-sin²y, and cos²x = 1-sin²x
Substituting these into the left side of the equation:
sin²x cos²y - cos²x sin²y
= sin²x (1-sin²y) - (1-sin²x ) sin²y
= sin²x - (sin²x sin²y) - sin²y + (sin²x sin²y)
= sin²x - sin²y
= Right Side of equation (Proven!)
Answer:
48 pizzas
60 pizzas
72 pizzas
Step-by-step explanation:
So pretty straight forward
So first you divide the amount of cheese by 3
so for the first one you have 18 pounds of cheese
Now 18/3=6
Now using that quotient (6) you multiply that by 8
6*8=48
So 18 pounds of cheese is 48 pizzas
Same thing with the others, even with the decimal one
For #1:
look at the chart and write the percentages that are by the name of the food and write the percentages next to the names
For #2:
take the percentage number and divide it by 2 (because it was 50 customers out of 100%) for example if 50% of the customers picked apples then divide it by 2 and 25 customers would have gotten apples and put that number next to the name
Hope that helps :D
Step-by-step explanation:
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