Saturday

April 30, 2016
Number of results: 56,519

**Radius Question Geometry(college level)**

When you have 3 separate circles and the radius of each of those circles is 10 do i calculate like this? 2(10)+2(10)+2(10)=60 cm for my diameter
*September 14, 2013 by luckybee*

**Geometry**

A person standing h feet above sea level can seecd miles to the horizon. The distance r is the radius of the earth = 3963 miles. d is the tangent to the circle forming a right angle to the radius. h + r is the tangent. Solve using Pythagorean theorem and secant-tangent theorem...
*August 15, 2013 by Loki*

**GEOMETRY QUESTION**

Four circles of unit radius are drawn with centers (0,1), (-1,0), (0,1), and (0,-1). A circle with radius 2 is drawn with the origin as its center. What is the area of all points which are contained in an odd number of these 5 circles? (Express your answer in the form "a pi + ...
*November 25, 2012 by SUPER HARD*

**Chemistry College Level**

Ok, so here's my question: If exactly 14.563 grams of KMnO4 were dissolved to yield 750 mL of solution waht would be the normality of the KMnO4? From a previous question (that this question says to refer to) we have: MnO4- +8H+ +5e --> Mn2+ +4H2O I'm not exactly sure what ...
*April 17, 2011 by Tichele*

**statistics**

Pleas HeLp!!!!!!!!!! A random sample of the test scores of 100 applicants for college entry at a large junior college showed a mean score of 72.6. Determine a 99%, 95%, and 90% confidence interval for the m mean score of all applicants at the junior college. Assume the ...
*September 17, 2011 by courntey*

**chemistry**

Using a periodic table, determine the number of electrons held in energy levels 1-3 of each atom. B----2 in level 1--3 in level 2--0 in level 3 C--2 in level 1--4 in level 2--0 in level 3 Mg--2 in level 1--8 in level 2--2 in level 3
*February 5, 2012 by kr*

**Calculus**

Consider a hemispherical bowl of radius 10cm. (4 points) If the water level in the bowl is h cm deep, find the radius of the surface of the water as a function of h. (6 points) The water level drops at a rate of 0.1 cm per hour. At what rate is the radius of the water ...
*December 2, 2012 by Karina*

**geometry**

Question 14: The following circle has a radius of 8 feet: What is the total area of the shaded regions?
*November 4, 2011 by bob*

**calculus**

A hemispherical tank with a radius of 10m is filled from an input pipe at a rate of 3m^3/min. How fast is the water level rising when the water level is 5m from the bottom of the tank? (hint: the volume of the cap of thickness of h sliced from a sphere of radius r is pih^2(3r-...
*April 15, 2015 by Linda*

**calculus (please help. URGENT!)**

A hemispherical tank with a radius of 10m is filled from an input pipe at a rate of 3m^3/min. How fast is the water level rising when the water level is 5m from the bottom of the tank? (hint: the volume of the cap of thickness of h sliced from a sphere of radius r is pih^2(3r-...
*April 15, 2015 by Linda*

**geometry**

. Which of the following circles would show the locus of points in a plane 1 unit from the intersection of the lines x + y = 2 and x â€“ y = 4? a. center (4, 2), radius = 1 b. center (3, â€“1), radius = 1 c. center (3, 1), radius = 1 d. center (0, 0), radius = 1
*September 28, 2010 by faty*

**Geometry**

A wheel with a radius of 13 rolls along level ground and makes 4 1/2 revolutions per second. Assuming the circumference to be 3.1416 times the diameter, how far does the wheel travel in 8 seconds?
*August 23, 2010 by Anna*

**geometry**

First of all let me apologize if this is the wrong section; this is a review question from a Calculus III class, but it doesn't involve any actual calculus so I posted it here. If I have a sphere with center (2,-10,4) and radius 10 what is: the intersection with the yz plane? ...
*August 23, 2011 by sphere*

**Physics 1 College Level**

A planet/moon has a mass of 77.89 × 1023 kg and a radius of 7.9 × 106 meters. What is g on the surface to the nearest hundredth of a m/s2? Once again, not really sure where to go with this. Out of the 10 problems I've only had trouble with this and one other.
*June 1, 2013 by Devin*

**College Physics**

an escalator carries you from one level to the next in the airport terminal. the upper level is 4.5 m above the lower level, and the length of the escalator is 7 m. your mass is 60 kg. how much work does the up escalator do on you when you ride it from the lower level to the ...
*November 12, 2009 by HP*

**Geometry**

Two marbles are sitting side by side in a glass container.b the base of the container is 10 units long and the radius of the smaller marble is 2 units. What is the radius of the larger marble? Describe the strategy used to answer the question.
*August 8, 2013 by Loki*

**geometry math**

There is an upside-down cone that is 12m high and has a circular base with a radius of 4m that is being filled with liquid. Make V, the volume, a function of the height of the liquid, h. What is the volume of the cone when the water is 5m deep? V = (1/3)pi*r^2*h This formula ...
*July 8, 2007 by CrazyFeet*

**geometry**

In a circle with centre P,a chord AB is parallel to a tangent & inersects the radius drawn from a point of contact at the midpoint of the radius .If AB=12,FIND THE RADIUS OF THE CIRCLE.
*July 14, 2011 by Mahek*

**math geometry**

Given a circle with an 8" radius, find the area of the smaller segment whose chord is 8" long? I don't even understand how to start a question like this?
*October 6, 2014 by Cassandra*

**college**

A tank for storing water is conical in shape, with maximum radius 20 m and maximum depth 15 m. The large, circular end of the tank points vertically upwards and is open to the air. It is known that the volume of water in the tank will decrease at a rate proportional to the ...
*October 19, 2015 by Pankaj*

**adult ed geometry**

Adult education due to the level -thanks - An arc ABC is one quarter of a circle with center B and radius 6. Rectangle EDFB is inscribed in ABC. If ED + DF = 8, find the perimeter ADCFE. Round your answer to the nearest hundredth.
*December 1, 2010 by antonne*

**college pre-calculus**

4x^2+4y^2-16x-24y+51=0 is the equation of a circle. where is the center of the circle and what is it's radius? A. center (2,3) radius=1/4 B. center (2,3) radius=1/2 C. center (-2,-3) radius=1/4 D. center (-2,-3) radius=1/2
*January 11, 2015 by Derek*

**geometry**

Math - Plane Geometry. BC is a diameter of circle O, and radius OE is parallel to chord CD. Help?
*May 23, 2011 by Brianna*

**college math**

In regards to my question radius 2.6 yd length 8.4, 3.14 I used that formula and somewhere i went wrong ikeep coming up with the answer 68.5776 whichis none of the choices given.
*June 1, 2012 by Lourane*

**calculus**

A large container has the shape of a frustum of a cone with top radius 5 m, bottom radius 3m, and height 12m. The container is being filled with water at the constant rate 4.9 m^3/min. At what rate is the level of water rising at the instant the water is 2 deep? the finial ...
*November 8, 2014 by Jennifer*

**college physics**

Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4ðr63/3]
*January 19, 2010 by Mandy*

**college physics**

Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius of sphere A is 7.50 cm, what is the radius of sphere B? [Volume of a sphere of radius r is given by V = 4ðr63/3]
*January 19, 2010 by Mandy*

**College Physics**

A bowling ball (mass = 4.4 kg, radius = 0.11 m) and a billiard ball (mass = 0.35 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other? What equation should I use with this since ...
*March 14, 2012 by Anonymous*

**geometry **

2. For the circle with equation (x – 2)2 + (y + 3)2 = 9, answer each question: a) What are the coordinates of the center? none b) What are the radius and diameter of the circle? 360 c) Graph the circle.
*May 13, 2015 by toriie*

**history..maths litercy..geography..life science..isizulu..life orentation..**

im doing grade 11 and next year im doing grade12 so my question is that i want to be a boilermaker and i want to work in sasol so i dont know if this sbject is right to do boilermaker if you have any information please contact me on 0736124260 or 0739615308 in june exam my ...
*December 2, 2014 by gift skhanyiso vilakazi*

**Physics 1 College Level**

If D = 3204 meters and d = 1247 meters in the figure, what is the magnitude of the force on the space ship to the nearest MN? Consider all three to be point masses. I'm not even sure to begin with this question. Any help will be much appreciated!
*June 1, 2013 by Devin*

**Math**

The homothetic geometry on C is (C,H) where H is the group of scaling of C. Which figures are congruent in (C,H) to the circle of radius 1 centered at 1? How could you describe the congruence class in language understandable by a high school geometry student?
*October 3, 2011 by Kyle*

**English**

* Approach level, On level, Beyond level (What are the meanings of the words? There are English problems with three levels in the text book. Approach level is for the beginners. On level is for the medium-level students. Beyond level is for the high level students. What is the...
*June 27, 2009 by John*

**Math**

This is a question regarding quadratic equations. I think I have to use the quadratic formula but I'm not sure and because the question provides the base I think I'm wrong. Here is the question|: During a hurricane, parabolic waves on the ocean can exceed a height of 30 m ...
*May 31, 2015 by Brady*

**college**

Describe the difference between college-level writing and casual writing
*May 26, 2010 by lisa*

**chemistry**

I don't know how to explain or if Ive got my homework answer correct. The question is: A patient on dialysis has a high level of urea, a high level of sodium and a low level of potassium in the blood. Why is the dialyzing solution prepared with a high level of potassium but no...
*April 14, 2011 by Connie*

**geometry**

Write an equation for each circle if the coordiantes of the center and length of the radius are a. center(-1,-5) radius = 2 units b. center(0,3) radius = 7 units c. center(-9,7) radius = 1/2 units
*April 29, 2012 by lindsay*

**college physics**

My previous question was marked science, but it's specifically a college physics question. Thanks.
*October 25, 2013 by bbragg*

**Geometry **

For each property listed from plane Euclidean geometry, write a corresponding statement for non-Euclidean spherical geometry. A line segment is the shortest path between two points Hey guys I want to know how to do this and can you help me with this question?
*May 29, 2011 by Anonymous*

**geometry**

Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary.
*October 14, 2010 by Anonymous*

**college algebra**

Find the center and radius of the circle (x+3)^2+(y-5)^2=13 I think the center is (-3,5) Radius is (13) but I don't know how to show the work for it.
*January 22, 2013 by debbie*

**Geometry**

Find the area of the regular polygon with the given radius. Radius: 6cm. Area= apothem x perimeter/ 2
*March 19, 2012 by Ashley*

**Geometry**

Find the area of the regular polygon with the given radius. The radius of the square is 6 cm. area= apothem x perimeter/ 2
*March 19, 2012 by Anonymous*

**Geometry **

Find the area of the regular polygon with the given radius. The radius of the square is 6 cm. area= apothem x perimeter/ 2
*March 19, 2012 by Anonymous*

**geometry**

a hemispherical bowl of radius r cm is filled with water.a sphere of radius r/2 cm is immersed in it.show that the volume of water displaces is pie r square/2 c.c.
*March 14, 2012 by arvind*

**Geometry**

The density of steel is about 0.28Ib/in^3. could you lift a solid steel ball with radius 4in? whith radius 6in? explain
*September 29, 2013 by George*

**geometry**

Circle A has radius 6. Circle B has radius 10. They cross at two points that are 5 apart. What is the overlapping area?
*February 8, 2013 by priyanka*

**Stats**

1. In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1-10. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 1 2 7 10 3 5 = 3.88 X= 5.13 s = 2.03 s = 2.90 ...
*June 22, 2013 by Dee*

**statistics**

In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1-10. The data appear below. Number of Cups of Coffee Stress Level 3 5 2 3 4 3 6 9 5 4 1 2 7 10 3 5 = 3.88 X= 5.13 s = 2.03 s = 2.90 ...
*November 25, 2013 by NAD*

**mechanics of machines**

A vehicle travelling at 29m/s on a level road surface which curved to a radius of 50m about to overturn The centre of gravity at centre of the 1.5m track. a. At what height is the centre of gravity b. At what velocity could the vehicle negotiate the same curve, out banked to ...
*April 8, 2016 by Dennis*

**College Physics**

the driver of a 1200 kg car notices that the car slows from 20 m/s to 15 m/s as it coasts a distance of 130 m along level ground. how large a force opposes the motion? (book answer .81 kN ) can you help me plug the numbers into the correct formula to use for this question.
*February 18, 2010 by eddy*

**Coordinate Geometry: Ms.Sue or someone please help**

Hi! Can you please help me with this problem/proof? I'm not sure how to approach it. Thanks! Prove that a line perpendicular to a radius at the point where the radius meets the circle is tangent to the circle. Use coordinate geometry.Hi! Can you please help me with this ...
*October 28, 2013 by Anonymous*

**Coordinate Geometry: Ms.Sue or someone please help**

Hi! Can you please help me with this problem/proof? I'm not sure how to approach it. Thanks! Prove that a line perpendicular to a radius at the point where the radius meets the circle is tangent to the circle. Use coordinate geometry.Hi! Can you please help me with this ...
*October 28, 2013 by Anonymous*

**Geometry**

Four identical metal spheres, each with radius 6 cm, are melted and reshaped into one big sphere. Fine the radius of the new sphere.
*August 15, 2010 by Kyle*

**CALCULUS ECONOMICS**

Consider a market in which consumption of the good being traded generates a positive externality. There are 100 identical consumers, each with a utility function given by (1/2)*(q^(1/2))+m +(G^(1/2)) where G denotes the total level of consumption in the market. The good is ...
*March 13, 2014 by Jenney*

**geometry**

A propane tank is in the form of a cylinder with two half-spheres, one on each end. The radius of the cylinder is the same as the radius of each half-sphere. What is the volume of a propane tank of cylindrical length 12 ft and radius 5 ft, correct to the nearest whole cubic ...
*November 8, 2009 by kimama*

**Physics**

I am having trouble with the last portion of this question. If someone can help me, I would sincerely appreciate it. A bicycle wheel has a radius R = 32.0 cm and a mass M = 1.82 kg which you may assume to be concentrated on the outside radius. A resistive force f = 147 N (due ...
*July 9, 2011 by Matt*

**math**

n (level 0) = 1 n (level 1) = 4 n (level 2) = 13 n (level 3) = 27 what is the n level ? it means n of any level .. I need an equation, pls ?
*November 12, 2012 by mema*

**Geometry**

Complete Problem 34 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary.
*July 6, 2015 by Ice *

**Geometry**

Wilbur Wrong is flying his remote-control plane inn a circle with the radius 28 meters. He is holding the wire so that it is level with the ground. His brother, Orville Wrong, clocks the plane at 16 seconds per revolution. What is the speed of their plane? Express your answer ...
*May 17, 2011 by Keenan*

**college**

Do students at various colleges differ in how sociable they are? Twenty-five students were randomly selected from each of three colleges in a particular region and were asked to report on the amount of time they spent socializing each day with other students. The results for ...
*December 21, 2009 by Sandra*

**kinda easy geometry**

I know this geometry question may be simple for some of you but it is hard for me. I use to be able to do this type of problem but I guess I forgot it over time. Im sure we all do. Any help on this question would help. Thanks in advance for whoever helps me. :-) A line passes ...
*March 9, 2008 by jake*

**Geometry Ms. Sue help please?**

Ms. Sue, can you help me again? you replied to my question but i still need a bit of help Small Pizza- radius 6 in. cost $9.75 Medium- radius 8in cost $12 Large-diameter 20 in cost $16.50 The edge is stuffed with cheese, and its the best part of the pizza/ What size has the ...
*January 24, 2011 by Skye*

**college**

Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that ...
*July 15, 2010 by cyn*

**trig question**

During a 12- hour period, the tides in one area of the Bay of Fundy causes the water level to rise to 6 m above the average sea level and to fall 6 m below average sea level. The depth of the water at low tide is 2m as measured against a pier. Suppose the water is at average ...
*May 9, 2011 by Mhy*

**MATH **

JOhn had prepared the problem sets for Levels 1 to 5 of Geometry and Combinatorics for next month but forgot to label which set was for which level. Since Calvin didn't label them, the computer assigned them labels 1 through 5 randomly, with each label appearing only once. The...
*May 14, 2013 by intermediate player PLEASE HELP*

**Coordinate Geometry**

Hi! Can you please help me with this problem/proof? I'm not sure how to approach it. Thanks! Prove that a line perpendicular to a radius at the point where the radius meets the circle is tangent to the circle. Use coordinate geometry.Hi! Can you please help me with this ...
*October 28, 2013 by Anonymous*

**College math**

Highway curves If a circular curve without any banking has a radius of R feet, the speed limitL.in miles per hour for the curve is L=1.5 R. (a.)Find the speed limit for a curve having a radius of 400 feet. (b.) If the radius of a curve doubles, what happens to the speed limit...
*April 28, 2011 by Shin*

**Geometry**

15.) Find the volume of a barber's pole having the shape of a right circular cylinder of radius 5 in. and height 29 in. topped by a sphere of the same radius. Round to the nearest tenth, if necessary. A) 2276.5 in.3 B) 2799.8 in.3 C) 1046.7 in.3 D) 4553.0 in.3
*August 20, 2009 by Lisa*

**math 210 fundamentals of geometry**

Complete Problem 31 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary.
*December 4, 2015 by barbara*

**Physics/Nautical Mile**

The NM by definition is something used at sea. In my previous post I established there is a difference in the length of the earths radius at the equator compared to the poles, although it is not clear whether the radius is a measurement of land mass or sea level? Additionally ...
*October 5, 2007 by Mike*

**Geometry**

What is the circumference of the circle if the radius is: 5x-My answer was 57(x)pi. What is the radius if the circumference is: 30x(pi)-My answer was 2x. (x + y)pi -My answer (x+y)/7. What is the length of the arc if: radius=3 degree of measurement of arc=6- My answer was pi/9...
*June 14, 2010 by Temperance*

**physics**

In a machine, an ideal fluid with a density of 0.9*10^3 kg/m^3 and a pressure of 1.3*10^5 Pa flows at a velocity of 6.0 m/s through a level tube with a readius of 0.5 cm. This tube connects to a level tube that has a radius of 1.5 cm. How fast does the water flow in the larger...
*May 11, 2007 by Anonymous*

**Statistics**

In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level on a scale of 1 to 10. The date follow: Number of Cups of Coffee 3,2,4,6,5,1,7,3 Stress Level 5,3,3,9,4,2,10,5 Calculate a Pearsons r to determine the...
*November 7, 2013 by Nicole*

**College Algebra**

The centripetal force of an object moving around a circle varies directly with the square of the speed and inversely as the radius of the object. Suppose the force is 300 N when the speed is 15 m/s and the radius is 5m. What would the force be if the speed was increased to 20 ...
*October 27, 2015 by Gabriella*

**geometry**

IF THE RADIUS OF THE SPHERE IS 26 UNITS AND THE RADIUS OF POINT R IS 26 UNITS FIND CR.
*March 8, 2011 by Anonymous*

**How to get quick responses to your math questions**

Math is a wide subject, ranging from K to 11, college and university. Then there is algebra, trigonometry, geometry, arithmetic, calculus, number theory, ... etc. Not all teachers answer all math questions (many do). If you would give a little more detail on which branch of ...
*May 25, 2013 by MathMate*

**College Physics**

A concept question: Suppose that the centripetal force acting on an object in circular motion were increased to a new value, and the object remained in circular path with the same radius. How would its motion be affected?
*September 30, 2010 by Eric*

**Algebra (MAT 117)**

b. Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 miles from the center of the earth.) c. Use the value of C you found in the previous question to determine how much the object would weigh in...
*January 4, 2009 by Paradise*

**College math**

Highwq curves. If a circular curve without any banking has a radius of R feet, the speed limit L in miles per hour is L = 1.5 aqrt(R) (a) Find the speed limit for a curve having a radius of 400 feet. (b). If the radius of a curve doubles, what happens to the speed limit? (c.) ...
*April 30, 2011 by Shin*

**Geometry**

Trying to help my Autistic child with geometry. Need a simple step by step explanation and answer please. In this open ended question, find each item and include an explanation of how you found each one. Find arc AD. Find angle APD. If arc BC=100 degrees, find angle EBC. Find ...
*June 9, 2015 by Donna*

**Geometry**

<font face=TW Cen MT>Suppose a chord of a circle is 9 inches long and its midpoint is 6 inches from the center of the circle. Find the length of the radius. How in the world do you figure that out?</font face=TW Cen MT> You have a right triangle (centercircle, ...
*March 13, 2007 by Emily*

**college question**

Hello, I have a question about scholarships in college. I know you need to maintain a certain gpa to keep a scholarship, but do you need to keep that gpa at the end of each semester, or at the end of each academic year?
*December 17, 2015 by kelly*

**Art Appreciation (college level)**

Art 101 (Art Appreciation) textbook (Gardener's art through the ages) by Kleiner, F.S. 2010 The Western Perspective vol 11 (13th edition) Question: Discuss how the late Gothic sense can be seen as an evident in Berlinghieri's St. Francis Altarpiece.
*February 24, 2011 by Anna*

**LERUNTSE LESEDI SEC SCHOOL**

I completed my matric in 2013 and I am examted to diploma with the following subjects 1.Setswana-78%=Level 6 2.English-68%=Level 5 3.Afrikaans-57%=Level 4 4.Maths literacy-47%=Level 3 5.L.O-58%=Level 4 6.Economics-47%=Level 3 7.Business Studies-43%=Level 3 My scoring points in...
*November 11, 2015 by seunkie johannes*

**Geometry**

Ok i don't understand this question on my Geometry test. It says: On days that it rains, I carry an Umbrella 1. Rewrite the above statement as a conditional Can someone help me here?
*November 14, 2007 by Christina (:*

**Science project**

Hi, can anyone please propose a science project that has to do with bacteria at a high school level. Any will do.The ones I've looked up online are mostly elementary and I had to search up college level ones..which gave the same results.
*November 24, 2015 by Eunice*

**College Physic**

I am stuck on this question. Any help will be greatly appreciated! A 0.082 kg solid cylinder with a radius of 1.90 cm, is placed at the top of a 30º inclined plane of height 29.5 cm. If the inclined plane is not frictionless, and the cylinder does roll, determine the speed of ...
*November 4, 2012 by Jennifer Hill*

**math**

A magazine claims that 25% of its readers are college students. Of a random sample of 200 readers, 42 are college students. Use a .10 level of significance to test Ho: p =.25 and H1: p ≠ .25 Show the hypothesis test procedure.
*September 14, 2010 by cristi*

**Statistics**

Based on information from Harper's Index, 37 out of a random sample of 100 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of 100 Americans who did attend college, 41 claim that they believe in extraterrestrials. At the ...
*April 23, 2013 by Torri*

**Math209**

I am in a college level math class and we have a question that I am suppose to answer however I looked for this in our text and online and I am not finding a direct answer to it. Here is my question, What is the meaning of the word "parameters"? Please identify a real world ...
*March 25, 2009 by Trish*

**geometry**

how do you calculate the volume of a cylinder with two different sized bases? Radius of top base: 12cm, Radius of bottom base: 18cm, height: 8 units. How do you do this? i tried averaging them but it didn't give the correct answer... should be about 5730.3
*May 3, 2011 by Anonymous*

**Calculus**

A tank in the form of an inverted cone having an altitude of 2 meters and a base radius of 50 cm. Water if flowing into the tank at the rate of 10 cube centimeters/sec. How fast is the water level rising when the water level is 80 cm deep?
*March 1, 2016 by Pauline*

**Physics**

1. Question: Consider two planets with uniform mass distributions. The mass density and the radius of planet 1 are p1 and R1, respectively, and those of planet 2 are p2 and R2. What is the ratio of their masses? Ans: M1/M2 = (p1/p2)(R1/R2)^3...I got this answer correct. I need...
*August 28, 2011 by Neha*

**Geometry**

I need some help with a geometry question! connexus()com/content/media/527934-12182013-42511-PM-845062975()png 4. What are values of x and y? a. x = 9/4, y = 3/4 b. x = 9/4, y = 15/4 c. x = 15/4, y = 5/4 d. x = 3/4, y = 15/4 I think it's A. Can someone help?
*February 12, 2015 by Sandy East Ward*

**Tutoring Question**

I love this jiskha service so far. It's been extremely helpful, however I was wondering if there were pay services that offered a little more. Sometimes I don't get answers to homework problems I'm stuck on. I think it's harder to get help on some college level courses, for ...
*February 21, 2009 by chemstudent*

**college algebra**

question 1: build the fraction x+5/x+3 to an equivalent fraction whoes denominator is x^2 question 2: simplify (x^2+6x+9)(3-x)/(x-3)(2x+6) question 3. find the product in simplest from x^3-9x/x^5+27x^2 * x^2-3x+9/x^2+3x
*September 2, 2014 by ashley*

**This math question is confusing.**

A set of hemispherical bowls are made so they can be nested for easy storage. The largest bowl has a radius of 30 cm and each successive bowl has a radius 90% of the preceding one. What is the radius of the tenth bowl? there is a picture, sorry i cant put the picture but can ...
*January 3, 2016 by Emily*

**geometry**

one radius of a circle is 4 meters long. How long would a different radius of the same circle be?
*November 15, 2010 by iya*

**AP Physics**

A cylindrical container of radius 20 cm contains water of height of 3 m. Two meters down from the water level there is a hole of 0.5 cm in radius. Find the velocity and volume flow rate of water leaving the hole. Where does it strike the ground?
*November 29, 2010 by Charlie*