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Rectangles with the same perimeter |
2006-03-14 |
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From Kristine: If two rectangles have the same perimeter, will they also have the same area? Why Answered by Penny Nom. |
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2x+3y=0 and 3x-y=0 |
2006-03-14 |
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From Lisa: my name is lisa I am doing math for work and i have a math problem to solve and i need help with it here is the question 2x+3y=0 and 3x-y=0 this is one question can you help me please Answered by Penny Nom. |
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Adding a cellar |
2006-03-14 |
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From Spencer:
You want to add a cellar to your store. The construction company told you it would cost $5.90 per cubic yard to dig the cellar plus $20.00 per square ft. to finish it.
How much will it cost to add a cellar 36 feet long, 14 feet wide, and 8 feet deep?
Answered by Stephen La Rocque. |
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A circle containing two points |
2006-03-13 |
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From Skye: Write the equation of a circle having area 15pi and containing the points (1, 5) and
(1, 9). Answered by Penny Nom. |
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A fifth degree polynomial |
2006-03-13 |
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From Forrest: When f(x) = x5 - 3x4 - 6x3 + 3ax2 - 24 is divided by x2 - 2 the remainder is bx.
Find the values of a and b.
Hence solve the equation f(x) = -8x Answered by Penny Nom. |
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f(x) is a polynomial of degree 3. |
2006-03-13 |
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From Meadow: f(x) is a polynomial of degree 3. It leaves a remainder of 10 and 4 when divided by
x + 1 and x - 2 respectively. Given also that f(1) = f(-2) = 0, find the remainder when
f(x) is divided by x - 3. Answered by Penny Nom. |
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The kangaroo high school band |
2006-03-12 |
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From Cristy: Two hundred students joined the kangaroo high school band. Based on statistics from previous years, 1/3 of the students will drop out. of the remaining members, only 6% will qualify for the state band. How many of the original members can be expected to qualify for the state band? Answered by Stephen La Rocque. |
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Divide the product of three consecutive positive integers by their mean |
2006-03-12 |
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From Sandy: When I divided the product of three consecutive positive integers by their mean, I got 99. What is the smallest of the three numbers? Answered by Stephen La Rocque. |
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Cubic yards of dirt |
2006-03-12 |
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From Gordon: I have an area 40 ft. by 6 ft. in my front yard I want mound over and plant shrubs. How many yards of dirt will I need to do this? Answered by Penny Nom. |
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The area of a parallelogram |
2006-03-12 |
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From Shayne: Is there a method of finding the area of a trapezium or/and parallelogram even if the height is not given? Could you also explain how to find the height? Answered by Penny Nom. |
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Cubic feet to cubic yards |
2006-03-12 |
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From Sandy: We need to convert feet to cubic yards. The concrete is 45ft by 10ft by 4ft. How many cubic yards is this? Answered by Penny Nom. |
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On the blueprint, the scale indicates that 2 cm represents 5 ft. |
2006-03-11 |
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From Teresa: On the blueprint, the scale indicates that 2 cm represents 5 ft. What are the actual dimensions of a room that is 4.8 cm by 6 cm on the blueprint? Answered by Penny Nom. |
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The volume of a freezer |
2006-03-11 |
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From Marsha: I have a stand up freezer that measures 2ft deep, 23 inches wide, and 44.5 inches in height. I multiplied them (2x23x44.5) and came up with 2047. I guess my question is, when you look at an ad for this item, they always say 17, 14, or 19 cubic feet. How do they (and I) come up with a number like that? Answered by Penny Nom. |
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Two consecutive even integers |
2006-03-11 |
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From Cheryl: Find two consecutive even integers that have a sum of 450
Answered by Stephen La Rocque. |
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Profit |
2006-03-11 |
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From Wendy: If I have a product I have bought for 33.58 and I mark it up by 30% sell at 43.65 how do I work out the gross profit. Answered by Penny Nom. |
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