Tutors Answer Your Questions about Circles (FREE)
Question 305000: I have been working on this math problem and i can't seem to figure it out. I was wondering if someone could help me? Please and Thank You!! I deeply appreciate it!!
A regular square pyramid with base edge 4 cm is inscribed in a cone with height 6 cm. What is the volume of the cone?
Click here to see answer by richwmiller(9135)   |
Question 308572: four circles of radius 1 are inscribed in a larger circle. The large circle is tangent to every smaller circle. Each small circle is tangent to the large circle and to two small circles. What is the radius of the large circle?
Click here to see answer by Fombitz(13828)  |
Question 308771: Write the equation of each circle:
The endpoints of the diameter are (-2,1) and (8,25)
I need help with the problem above.
I've tried to solve it using distance formula and I got the radius to be 13. I used midpoint formula to find the center of the circle and found it to be (3,13). For my final equation I got:
(x-3)^2+(y-13)^2=169
I just need someone else to check my work with to make sure it is correct because this homework is graded. Thank you!
Click here to see answer by rapaljer(4667)  |
Question 308771: Write the equation of each circle:
The endpoints of the diameter are (-2,1) and (8,25)
I need help with the problem above.
I've tried to solve it using distance formula and I got the radius to be 13. I used midpoint formula to find the center of the circle and found it to be (3,13). For my final equation I got:
(x-3)^2+(y-13)^2=169
I just need someone else to check my work with to make sure it is correct because this homework is graded. Thank you!
Click here to see answer by stanbon(57246) |
Question 308791: The directions state to write the equations of the following lines and leave the answer in standard form.
The problem states: a line perpendiciular and containing point (-2,-4)
For this problem, I am aware of the fact that if a line is perpendicular to another line, their slopes are opposite recipricols. Although, I am not sure what the slope would be or the final equation. Please help! This is a graded mathe assignment!
Click here to see answer by stanbon(57246) |
Question 308791: The directions state to write the equations of the following lines and leave the answer in standard form.
The problem states: a line perpendiciular and containing point (-2,-4)
For this problem, I am aware of the fact that if a line is perpendicular to another line, their slopes are opposite recipricols. Although, I am not sure what the slope would be or the final equation. Please help! This is a graded mathe assignment!
Click here to see answer by Fombitz(13828) |
Question 308795: I used the formula (x-h)^2 +(y-k)^2=r^2 to determine the equation of the circle. I got c=(4,0)r=sqrt 13 (x-4)^2+(y-0)^2=(sqrt13)^2
(x-4)^2=(y-0)^2 =13 but now I have to determine where the circle intersects the x-axis using a system of equations. Can you please show me how to do this.
Click here to see answer by stanbon(57246) |
Question 308795: I used the formula (x-h)^2 +(y-k)^2=r^2 to determine the equation of the circle. I got c=(4,0)r=sqrt 13 (x-4)^2+(y-0)^2=(sqrt13)^2
(x-4)^2=(y-0)^2 =13 but now I have to determine where the circle intersects the x-axis using a system of equations. Can you please show me how to do this.
Click here to see answer by Fombitz(13828) |
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