Answer:
1/2
Step-by-step explanation:
if you look at a unit circle, sin(\pi/6) is so cos of (\pi/6/2) would be \pi/3, and cos of (\pi/3) is 1/2
Is the equation y=4x+1 proportional? * Yes No
1 answer:
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Answer:
If 11 oranges cost $2.35, then the cost of 18 oranges is $3.84.
Step-by-step explanation:
We have,
The number of oranges purchased varies directly as the price of the oranges.
If the cost of 11 oranges is $2.35.
It is required to find the cost of 18 oranges.
As their is direct relation between number and oranges and price.
So,
The cost of 1 orange is $.
For finding the cost of 18 oranges, multiply 18 by $ such that,
So, If 11 oranges cost $2.35, then the cost of 18 oranges is $3.84.
Negative multiply negative = Positive
Negative multiply positive = negative
Thus the answer is -4a + 16b - 12c - 12d.