Let (x,y) be an arbitrary point on the circle.
Then d = √[x-3)2 + (y-0)2] = √[x2 - 6x + 9 + y2]
Since x2 + y2 = 1, y2 = 1-x2.
So, d = √[x2 - 6x + 9 + 1 - x2]
d = √(-6x+10)
Domain: x is the x-coordinate of a point on the circle centered at (0,0) with radius 1. So, -1≤x≤1.
But, for d to be defined, we need -6x+10 ≥ 0. So, x ≤ 5/3 (True for all x in [-1,1]).
Domain = [-1,1]
Range: -1 ≤ x ≤ 1 So, 6 ≥ -6x ≥ -6
16 ≥ -6x+10 ≥ 4
4 ≥ √(-6x+10) ≥ 2 That is, 2 ≤ d ≤4
Range: [2,4]
Step-by-step explanation:
Answer: B is Greater Than A.
Step-by-step explanation: um hm.
This is a mathematical word problem, so keep that in mind.
Hence, the reading for January 9 is -1°F (Option B)
The reading for Friday in the middle of the month is +1°F (Option C); and
<h3>What is a math word problem?</h3>
A mathematical word problem is a mathematical question that is stated in the form of a sentence. See the answers below.
<h3>What are the answers as given in the question?</h3>
The answers are given in a tabular form to enable proper comprehension:
Date Low-Temperature reading
- January 2 -5°F (three degrees lower than that of Jan. 23)
- January 9 -1°F (two degrees lower than the low January 16)
- January 16 1°F (6 degrees higher than the first Friday day)
- January 23 -2°F
- January 30 5°F (Seven degrees higher than the Friday before)
Learn more about word problems at:
brainly.com/question/13818690
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Answer:
The decimal 0.345 expressed as a fraction is 69200 .
Answer:
i don't know what goes up with three leg and goes down with 4
