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An isosceles triangle inscribed in a circle |
2015-03-23 |
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Rachel pose la question : Triangle ABC is an isosceles triangle inscribed in circle O. If each leg of the triangle is 13cm and the altitude to the base of triangle ABC is 5cm, find the radius of the circle. Penny Nom lui répond. |
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A train trip |
2015-03-23 |
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Ngcebo pose la question : A train travels a distance of 720 km at a speed of x km/h. on the return journey, it travels at an average speed of y km/h and completes the whole journey in an hour less. if the speed during the return journey was 10 km/h more, what were the speeds in m/s Penny Nom lui répond. |
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16 golfers for 18 weeks |
2015-03-22 |
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Rose pose la question : We could use a schedule to include the following:
16 golfers
4 foursomes
Each person plays once a week for 18 weeks.
No one plays in same foursome more than 1 or 2 times, or the least
amount of time.
Thank you for your kindness. Victoria West lui répond. |
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8 golfers playing in 2x2 balls in 5 games |
2015-03-18 |
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Brian pose la question : We are 8 golfers who will be playing in 2x2 balls in 5 games.
is there a formula to minimize the chances of playing with a partner or opponent
too often please ? Victoria West lui répond. |
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The weight of two dogs |
2015-03-17 |
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Renee pose la question : Darlene's dog weighed 5 times as much as Leah's dog. Together, the dogs
weighed 84 pounds. How much did each dog weigh?
Write an equation and solve Penny Nom lui répond. |
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A region defined by three lines |
2015-03-16 |
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Lucinda pose la question : find the area of the figure formed by the line y=-5x+9 and the x-axis and y-axis. Penny Nom lui répond. |
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A cone of maximum volume |
2015-03-16 |
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Mary pose la question : I have to use a 8 1/2 inch by 11 inch piece of paper to make a cone that will hold the maximum amount of ice cream possible by only filling it to the top of the cone. I am then supposed to write a function for the volume of my cone and use my graphing calculator to determine the radius and height of the circle. I am so confused, and other than being able to cut the paper into the circle, I do not know where to start. Thank you for your help! -Mary Robert Dawson lui répond. |
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Points on the x-axis |
2015-03-14 |
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Justin pose la question : jamie tells her friend that ordered pairs that have an x-coordinate of O line x-axis. She used the origin as an example. Describe Janine error. Use a counterexample to explain why Janine statement is false Penny Nom lui répond. |
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Two-tiered GST system |
2015-03-14 |
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Ruby pose la question : This question showed up in one of my Math assignments and nothing on the internet seemed to help me find a way to calculate it.
A certain country has a two-tiered GST system. For the first $1500 of any item, GST is levied at 10% and any amount over $1500 is levied at 15%.
Determine the amounts that give the following GSTs.
a) $350
b) $780 Penny Nom lui répond. |
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Average rate for a return trip |
2015-03-14 |
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Michael pose la question : Jeffrey drove to a town 25 miles away at an average speed of 50 miles per hour. The return trip along the same route took 20 minutes longer than the trip to town. Determine the average speed in miles per hour for Jeffrey's round trip. Penny Nom lui répond. |
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The side length of a gazebo |
2015-03-14 |
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Dennie pose la question : From middle of side to middle of opposite is 14'6". What is the length of the side? Penny Nom lui répond. |
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A limit |
2015-03-13 |
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arthur pose la question : sin(x-1)/x^+x-2 Penny Nom lui répond. |
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Commission |
2015-03-13 |
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Rose pose la question : A shopkeeper receives 12.5% (12 1/2 %) commission on the sale of books from
the publisher. In a certain month,he receives a commission of rs.250 from the
publisher. How much was his sale for that particular month?? Penny Nom lui répond. |
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A fishfinder |
2015-03-13 |
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Dave pose la question : I have a fishfinder that has a 20 degree cone on bottom of boat going to the bottom of the lake.
How do I know the size of base diameter of the cone on the lake bottom depending on depth...
such as 10 feet deep, for example? Penny Nom lui répond. |
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Olivia and Ray walk to school |
2015-03-12 |
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Rebeccah pose la question : Olivia and Ray walk to school. Olivia walks 1/4 of a mile to school. Her walk is 2/3 of the distance that walks Ray to school. What is the total distance,in miles,that Ray walks to school? Penny Nom lui répond. |
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