Instead "tan x°" in your question must be:"...what is the value of sin x° ?"
In that case: sin x° = tan x° · cos x° = 3 / y · y / z = 3 / z
Answer: A ) sin x° = 3 / z
<span>D. The amount spent on grapes compared with the weight of the purchase. In the other examples, the rate of change would be either very erratic (people on the bus, which would change suddenly and in large amounts depending upon stops, the girl's shoe size, which would change somewhat consistently, but with swings as growth spurts happened, or not at all, like the pizza example, which if you think about it, the amount of pizza doesn't really matter). The grape answer would have a set amount of pay based on weight (say $1 per pound), which would have a constant rate of change tied to the weight.</span>
B and F , wish you the best enjoy!
Answer:
2.82 miles per hour
Step-by-step explanation:
This is a fraction equal to
42.3 miles ÷ 15 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 15
42.3 miles ÷ 15
15 hours ÷ 15
=
2.82 miles
1 hour
=
2.82 miles
hour
= 2.82 miles per hour