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An isosceles triangle inscribed in a circle |
2015-03-23 |
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From Rachel:
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.
Answered by Penny Nom. |
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A train trip |
2015-03-23 |
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From Ngcebo:
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
Answered by Penny Nom. |
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16 golfers for 18 weeks |
2015-03-22 |
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From Rose:
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.
Answered by Victoria West. |
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8 golfers playing in 2x2 balls in 5 games |
2015-03-18 |
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From Brian:
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 ?
Answered by Victoria West. |
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The weight of two dogs |
2015-03-17 |
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From Renee:
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
Answered by Penny Nom. |
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A region defined by three lines |
2015-03-16 |
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From Lucinda:
find the area of the figure formed by the line y=-5x+9 and the x-axis and y-axis.
Answered by Penny Nom. |
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A cone of maximum volume |
2015-03-16 |
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From Mary:
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
Answered by Robert Dawson. |
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Points on the x-axis |
2015-03-14 |
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From Justin:
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
Answered by Penny Nom. |
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Two-tiered GST system |
2015-03-14 |
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From Ruby:
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
Answered by Penny Nom. |
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Average rate for a return trip |
2015-03-14 |
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From Michael:
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.
Answered by Penny Nom. |
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The side length of a gazebo |
2015-03-14 |
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From Dennie:
From middle of side to middle of opposite is 14'6". What is the length of the side?
Answered by Penny Nom. |
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A limit |
2015-03-13 |
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From arthur:
sin(x-1)/x^+x-2
Answered by Penny Nom. |
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Commission |
2015-03-13 |
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From Rose:
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??
Answered by Penny Nom. |
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A fishfinder |
2015-03-13 |
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From Dave:
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?
Answered by Penny Nom. |
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Olivia and Ray walk to school |
2015-03-12 |
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From Rebeccah:
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?
Answered by Penny Nom. |
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