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A linear system |
2007-01-04 |
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From Harold:
System A (4, 2/3)
2x-3y=6 and x-3y=2
I approached this problem using the addition method.
Could i have found the answer using the graphing method?
Answered by Penny Nom. |
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The slope-intercept form |
2007-01-04 |
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From Earnestine:
Given a line containing the points (1,4), (2,7), and (3,10) determine the slope-intercept form of the equation, provide one additional point on this line, and graph the function.
Answered by Penny Nom. |
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Annualized |
2007-01-03 |
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From Dan:
What would my rate of compound interest be per month? Invested $80,000 and in 150 days have increased that amount by $14,300.
Answered by Stephen La Rocque. |
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Tiles arranged in rows |
2007-01-02 |
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From Ann:
Some tiles are arranged in rows so that the number of tiles in each row is 8 more than the number of rows. The same number of tiles can be arranged in 3 more rows than the first pattern with 16 tiles in each row. Find the total number of tiles.
Answered by Stephen La Rocque. |
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Where do the medians of a triangle meet? |
2007-01-02 |
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From Brittany:
Where do the medians of a triangle meet?
1. Inside the triangle
v 2. On the traingle
3. Outside the traingle
Answered by Stephen La Rocque. |
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Can the trailer safely pass under the bridge? |
2007-01-02 |
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From Jim:
A truck hauling a double-wide trailer needs to pass under a parabolic-arched bridge en route or take a 50 mile detour. The trailer is 14 feet high and 15 feet wide. The arch supporting the bridge at this underpass is 18 feet high at the center and 40 feet wide at the base. Can the trailer safely pass under the bridge?
Answered by Stephen La Rocque. |
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How do the perimeters of the two pentagons compare? |
2007-01-02 |
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From Robert:
If the area of one pentagon is eighty-one times the area of another pentagon, how do the perimeters of the two pentagons compare?
Answered by Penny Nom. |
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Interest compounded daily |
2007-01-01 |
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From Kelly:
I have made an investment that offers one-half of 1% interest compounded daily. What would that interest calculate to with a $100,000.00 investment for one year ? I have not found a calculative formula that will calculate these figures ... Please HELP !!!
Answered by Penny Nom. |
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Apples, oranges, bananas and pears |
2006-12-30 |
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From Richard:
If 6 oranges weights as much as 4 apples, 5 bananas weights as much as 3 pears, and ten bananas weights as much as 8 oranges. How many pears and apples would you need to have their weights balanced.
Answered by Penny Nom. |
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A word problem |
2006-12-30 |
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From Harold:
one number is less than 5 times another number. sum of the numers is 26
Answered by Penny Nom. |
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Calculating rainwater volume |
2006-12-30 |
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From Mark:
Trying to calculate 1" rainfall on a 1000 sq' roof=how many gallons of water would collect in our cistern.
Answered by Stephen La Rocque. |
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Two cones |
2006-12-30 |
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From Cassie:
A cone of radius 6 and height 12 and a different cone of radius 8 and height 12 intersect as shown in the figure below, where the vertex of one matches with the center of the base of the other. Find the volume of the intersection of the two cones (in exact form).
Answered by Penny Nom. |
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An octagonal birdhouse |
2006-12-30 |
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From Verner:
I am building a octagon birdhouse,what degree would I cut each side of each piece of wood to assemble the birdhouse?
Answered by Penny Nom. |
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tanx (cotx + tan x ) = sec^2x |
2006-12-30 |
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From Fren:
tanx (cotx + tan x ) = sec^2x
Answered by Penny Nom. |
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The area of a triangle |
2006-12-29 |
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From Paula:
The area of a triangle is 24cm². Its height is 2cm more than its base. Determine the base and the height.
Answered by Penny Nom. |
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