Tutors Answer Your Questions about Circles (FREE)
Question 585093: A satellite is 4,600 miles from the horizon. Earth's radius is 4,000 miles. What is the distance of the satellite from earth's surface. I was doing 8,600 squared=4,000 squared +x squared. I get 7,613. Not one of my choices. Choices are 6,096, 8,600, 2,096 or 7315.
Click here to see answer by richwmiller(9135)   |
Question 587192: The flight path of Charlie's plane is (x-12)^2+(y-4)^2=9 and the flight path of Jackie's plane is (x-17)^2 + (y-5)^2 = 4.
If Charlie and Jackie are flying their planes at the same altitude, is it likely that the planes will collide at some time? Justify your response, clearly stating any assumptions.
Click here to see answer by Alan3354(30983)  |
Question 587712: Please help me solve this problem: How can the mode give an idea of what the mean might be? a. it would be the same as the mean b. a high frequency of numbers c. it would be close to the mean d. the mode and the median would be the same.
Click here to see answer by stanbon(57246) |
Question 588139: This is a 2-part question:
1. The equation of a circle is (x-h)^2+(y-h)^2=r^2 where(h,k) is the center and r is the center of this circle. Find the area and center of this circle. x^2+y^2=36
2. Find the area of the square inscribed in the circle in the previous (the question above) problem.
Click here to see answer by stanbon(57246) |
Question 590448: I have a pretty large test tomorrow about special segments in a circle. Would you please help me with figuring these things out?
THANKS!
I guess I will ask this first.
I need to write the equasion of a circle with a center at (-2,4),passes through (-6,7)
Click here to see answer by scott8148(6628)  |
Question 591395: A circle has radius of 6 cm. The area of a sector of the circle is 3 pi cm squared. What is the measure of the central angle of the sector? Also someone else already asked this, but the tutor didn't answer it fully..sorry! I tried, but couldn't get it!
a.) 3o degrees
b.) 60 degrees
c.) 15 degrees
d.) 330 degrees
Click here to see answer by stanbon(57246) |
Question 595750: Find the area of the larger segment whose chord is 8" long in a circle with an 8" radius.(I'm guessing there are two segments? I have no idea, there is no diagram)
I'm working on an online geometry course and I'm given very little notes and no examples relate to this question. If I could see the work for this problem, I believe I could definitely try to solve the rest of my homework.
Click here to see answer by scott8148(6628) |
Question 595728: Please help me solve this geometry question: Determine the equation of the line through the center of the circle that is perpendicular to the diameter with endpoints at (4,2) and (4,-8). It needs to be in slop-intercept form.
Click here to see answer by mananth(12270)  |
Question 597160: Can someone help me with this question please?
A circle C passes through the point (-12, 9) and is given by the equation
If the equation of the tangent to the given circle at the point (-4, 1) is given by:
Find the values of a,b and r.
Thank you.
Click here to see answer by solver91311(16868)  |
Question 599560: Please help me solve this problem: What is the area of one segment formed by a square with sides of 6 inches inscribed in a circle.
(hint: use the ratio 1:1:√2 to find the radius of the circle)
I would really appreciate any help with this question. I do online schooling and am having alot of trouble with my geometry class and fing the area of segments. Thank you for any help!
Click here to see answer by ankor@dixie-net.com(15638)  |
Question 601768: A bucket is raised from a well by means of a rope which is wound round a wheel of diameter 77 cm .given that the bucket ascends in 1 min28 secs with a uniform speed of 1.1 m/sec, calculate the number of revolutions the wheel makes in raising the bucket.
Click here to see answer by stanbon(57246) |
Question 601836: Hello,
I have difficulty with a question in a test study guide I am working on. It has a figure of a circle with 2 segments parallel to each other. The problem is written below:
In the figure above, lines AE and BD are parallel, and line AD is the diameter of the circle. If the length of arc BCD is equal to 4π, then what is the area of the circle?
Lines AE and BD are the chords of each segment and between B and D is the arc C. Also there is a line of the diameter of the circle connecting A and D. The angle of EAD is 30 degrees. That is all the information given.
I am more interested in the correct formula to use than the answer. So please just show me the method to get the area of the circle using this information. Thank you for your help.
Click here to see answer by w_parminder(53)  |
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