Which point is on the circle centered at the origin with a radius of 5 units?
2 answers:
Answer:
(2,√21)
Step-by-step explanation:
The circle centered at the origin has equation:
Any point that satisfies this equation lie on this circle.
When x=2, we substitute and solve for y.
Take square root to get:
Therefore (2,-√21) and (2,√21) are on this circle.
From the options, (2,√21) is the correct answer
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Answer: Yes, Number of students who study French is greater than number of students who study Japanese.
Step-by-step explanation:
Since we have given that
Number of high school students study Japanese ≥ 100
Percent of high school students who study French also study Japanese = 4%
If the Percent of the students who Japanese also study French = 10%
So, our equation becomes
With the help of ratio, we get that
Number of students who study French is greater than number of students who study Japanese.
Hence, Yes, Number of students who study French is greater than number of students who study Japanese.