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A rectangular garden |
2010-04-25 |
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From Billy:
Tanisha wants to make a rectangular garden with a perimeter of 38 feet. What is the greatest area possible that tanisha can make the garden?
Answered by Penny Nom. |
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The height of a flag shaft |
2010-04-25 |
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From Sarah:
A man standing 20metres away from a tower observes the angles of elevation to the top and bottom of a flag shaft standing on the tower as 62degrees and 60degrees respectively. Calculate the height of the flag shaft.'
Answered by Penny Nom. |
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Commission |
2010-04-24 |
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From TAHIR:
I want to pre-determine the amount of commission on sale of my product which will be the amount that I shall have to pay .
For example, the price is $ 600and commission 5% .
1) I calculate commission on 600 @ 5% = $ 30
When added $ 600 the retail price = $ 630
2) But on $ 630, 5% commission = $ 31.50
So we make a loss of $ 1.50 .
3) Again if we add this $ 1.50 to $ 630 the price = 631.50
But the commission when calculated does not tally
and we make a loss of $ 0.075.
Please let me know how to determine the commission beforehand so that it matches our accounts.
Answered by Penny Nom. |
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Bags of cement |
2010-04-24 |
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From Carol:
How many bags of portland cement will I need for an area that is 18' x 31' with a thickness of 4".
The bags weigh 94 lbs if that is necessary. Thank you for any help.
Answered by Penny Nom. |
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Algebraic fractions |
2010-04-22 |
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From rory:
3x/(x²-64)+4/(x²-6x-16)=
Answered by Robert Dawson and Harley Weston. |
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A table of values |
2010-04-22 |
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From Donna:
Complete the table by determining the value of each letter. Explain what rule is used to relate the numbers in the second column (with the heading of y) with those in the first column (with the heading of x).
x | y
3 | 5
9 | 23
4 | 8
6 | A
7 | B
C | 11
D | 2
I can't figure this out, can you help me?
Answered by Robert Dawson. |
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4 + 10 + · · · + (6n − 2) |
2010-04-21 |
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From Lan:
Find the sum 4 + 10 + · · · + (6n − 2). The answer is 3(n^2) + n. How?
Answered by Penny Nom. |
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Solving a trig equation |
2010-04-21 |
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From Jason:
Please Help! My question is :
Find all of the solutions to sin(x/2)+cosx-1=0
Answered by Penny Nom. |
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Profit |
2010-04-21 |
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From joyann:
a Raleigh road runner 16" unisex bike which cost $892 was sold for $1052.56 calculate
A. the profit made on the bike
B. the percentage profit
Answered by Penny Nom. |
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Compound interest |
2010-04-21 |
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From Kenneth:
Let's say that an investor has $1000.00 to invest for 3 years at a rate of 5% at
compound interest. Here is the formula:
M = 1000(1 + 0.05)^3 = $1157.62
If I want to change 1000(1 + 0.05) to (1000 + 0.05*1000) three times in a
calculation instead of using (1 +0.05)^3, how would this be done?
I cannot get (1000 + 0.05*1000) + (1000 + 0.05*1000) + (1000 + 0.05*1000) to
equal $1157.62.
I know that 1000(1.05)(1.05(1.05) will produce the answer, but I want to try to
use the above non-factored calculation.
Answered by Penny Nom. |
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If (x, 4) is equidistant from (5, -2) and (3, 4), find x. |
2010-04-21 |
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From abeth:
If (x, 4) is equidistant from (5, -2) and (3, 4), find x.
Find the point on the y - axis that is equidistant from (-4, -2) and (3, 1).
Answered by Penny Nom. |
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A 12 foot by 12 foot room |
2010-04-20 |
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From Dominique:
The room is 12ft by 12ft. How many yards must be purchased for the carpet?
Answered by Penny Nom. |
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The length and width of a table |
2010-04-19 |
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From Linda:
The length of the top of a table is 2 feet longer than 4 times the width.
The area is 72m squared. Find the dimensions of the table.
Answered by Penny Nom. |
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Mathilde aime la musique et les mathématique. |
2010-04-19 |
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From Lucas:
j'ai un problème pouvait vous m'aider a le résoudre:Mathilde aime la musique et les mathématique.Quand on lui demande combien de CD elle a elle répond "Je ne les ai pas comptés.quand je les groupe 5 par 5 ,il ne m'en reste pas.quand je les groupe 2 par2,il m'en reste 1.quand je les range 6 par 6,il m'en reste 5.je suis surque j'en moins que cinquante."
Peux-tu trouver le nombre de CD de Mathilde?
aider moi svp
ps:je suis en 6ème donc faut pas que se soit trop compliqué
Answered by Claude Tardif. |
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The median |
2010-04-18 |
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From amper:
How could i get the median with this equation f(x)=(x^2+4)3/13 0
Answered by Harley Weston. |
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