# Questions on Geometry: Circles and their properties answered by real tutors!

Algebra ->  -> Questions on Geometry: Circles and their properties answered by real tutors!      Log On

 Ad: Mathway solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Question 366780: What is the sum of the coordinates of the center of the circle whose equation is x^2 + y^2 - 6x - 10y + 30 = 0 ? Click here to see answer by ewatrrr(11176)

 Question 366918: if a circle is tilted, thus making it oblong, how do you find the radius? Click here to see answer by stanbon(60778)

 Question 366921: The sum of the radii of two circles is 6 cm. If the radius of one of the circles is x cm, form an equation for A, the sum of the areas of the two circles. If the value of A is 20π;, calculate the radius of each circle. Click here to see answer by mananth(13127)

 Question 367048: Find the center-radius form of the circle whose equation is x2 + 6x + y^2 - 2y + 6 = 0. Click here to see answer by mananth(13127)

 Question 368294: If a circular track has a diameter of 1.5 miles, what is its circumference? Click here to see answer by mananth(13127)

 Question 368324: Find the radius of a circle with circumference 215. Round to two decimal places. Click here to see answer by amoresroy(333)

 Question 368193: : Debbie plans on investing enough money so that she will have \$2000 at the end of four years. How much money will she have to invest now if her money will grow according to the following formula: 2000 = P (1.025)^4? Click here to see answer by Fombitz(13828)

 Question 368345: : Factor completely: 50a^2 – 40 a + 8 Click here to see answer by Fombitz(13828)

 Question 368356: Solve the following equation for value of ‘a’: 8/a^2+a-6 = 6/a^2-9 Click here to see answer by Fombitz(13828)

 Question 368347: Simplify square50x^3 - x square128x + square 98x^3 Click here to see answer by Fombitz(13828)

 Question 368557: I dont understand how you solve x and y values in circles when it has a circle and a triangle inside it with different numbers. Click here to see answer by Fombitz(13828)

 Question 368992: : Factor completely: 3w^2 + 27w + 54 Click here to see answer by Fombitz(13828)
 Question 368992: : Factor completely: 3w^2 + 27w + 54 Click here to see answer by lefty4ever26(59)

 Question 368987: Solve for x: 12x^2 – x = 1 Click here to see answer by Fombitz(13828)

 Question 369568: If a circle with a radius of 10 has its radius decreased by 2 , by what percent is the area decreased? A. 20% B. 25%C. 36% D. 40% E. none Click here to see answer by Alan3354(34678)
 Question 369568: If a circle with a radius of 10 has its radius decreased by 2 , by what percent is the area decreased? A. 20% B. 25%C. 36% D. 40% E. none Click here to see answer by nerdybill(7090)

 Question 369849: Reduce the following to lowest term: 2x/x^2-9 + 3x/x^2+4x+3 Click here to see answer by mananth(13127)

 Question 369840: Simplify: 3/xy - 1/3y / 1/6x - 3/5y Click here to see answer by Fombitz(13828)

 Question 370352: find the area of the largest circle which can be cut from a square of 4edge 4 in. what is the area of the material wasted? Click here to see answer by mananth(13127)

 Question 370486: Solve the following equation for ‘x’ and check for extraneous solutions: Click here to see answer by Edwin McCravy(9717)

 Question 370517: Hi, I have to find the standard form of a circle with center (6, -3) and diameter . Since the standard form of a circle is: and diameter = , I am getting this wrong and no clue why :( Thanks for your help! Click here to see answer by jim_thompson5910(29613)

 Question 370545: Hi, I'm having trouble graphing the following parabola: It seems so simple. I have the vertex (0, 0) and I'm trying to find points and I'm getting the answer wrong. I found (32, 4) and (18, 3)...but these are apparently wrong. Please help! Thanks for your time :) Click here to see answer by stanbon(60778)
 Question 370545: Hi, I'm having trouble graphing the following parabola: It seems so simple. I have the vertex (0, 0) and I'm trying to find points and I'm getting the answer wrong. I found (32, 4) and (18, 3)...but these are apparently wrong. Please help! Thanks for your time :) Click here to see answer by mananth(13127)

 Question 370627: OABC is a rhombus whose three vertices A,B,C lie on a circle with centre O. If the radius of the circle is 10 cm, find the area of rhombus. Click here to see answer by solver91311(18785)

 Question 370493: Solve the following equation for value of ‘m’: 5/2m+6 - 1/m+1 = 1/m+3 Click here to see answer by robertb(4012)

 Question 370558: Point C is teh center of the circle. The measure of angle ACB is 15x+20. Arc ADB measures 20x-10. Find the value of x. Click here to see answer by robertb(4012)

 Question 370561: Point C is the center of the circle. What is mAB if Click here to see answer by robertb(4012)

 Question 370975: Point C is the center of the circle. What is the mAB if the central angle ACB is equal to 140degrees? Click here to see answer by stanbon(60778)

 Question 371080: find the circunference if the diameter is 1.32 use pi 22 /7 Click here to see answer by rfer(13569)

 Question 371469: if a circle has a radius of 12 inches what is the circle's diameter Click here to see answer by Edwin McCravy(9717)

 Question 371720: the circle has its center at the origin and passes through (0,-5). To the nearest hundredth, find the area of the circle Click here to see answer by robertb(4012)

 Question 371788: How do you prove: in the same circle or in congruent circles, the shorter of two chords is the greater distance from the center of the circle? Click here to see answer by robertb(4012)

 Question 372025: at the center of a square with 3-inch sides. find the area of the square not covered by the circle to the nearest tenth. Click here to see answer by Fombitz(13828)

 Question 372491: Find the radius of a circle defined by the equation 6x^2+6y^2+48x+108y+558=0 They want you put it in this form (x-h)^2+(y-k)^2=r^2 I first Subtracted the 558 on both sides but I got stuck after that Here's what I have 6x^2+6y^2+48x+108y+558-558=0-558 6x^2+6y^2+48x+108y=558 Click here to see answer by Fombitz(13828)

 Question 372552: Find the center of the circle with these three points:(-3,-6),(9,-6),(3,0) I know how to find the radius by using points,but I'm not sure I know how to find the center of a circle with points please help. Click here to see answer by Fombitz(13828)

 Question 372504: Find the center of the circle defined by the equation x^2+y^2+16x+10y+53=0 The question want you to put it in this form (x-h)^2+(y-k)^2=r^2 Click here to see answer by Fombitz(13828)