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math |
2017-11-11 |
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From rukhsar:
A certain triangle has sides, which are, respectively, 6 inches, 8 inches, and 10 inches long. A rectangle equal in area to that of the triangle has a width of 3 inches. The Perimeter of the rectangle, expressed in inches, is
Answered by Penny Nom. |
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Five coins |
2017-11-10 |
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From Allan:
I have five coins..a penny,a nickle,a dime,a quarter and a loonie.....how many different amounts of money could i pay using ny combination of this coins
Answered by Penny Nom. |
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Mathematical ideas in everyday life |
2017-11-08 |
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From Ricita:
Mathematical ideas to solve various problems of our everyday life ,environment
related problems.
Answered by Penny Nom. |
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Scale factor |
2017-11-03 |
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From Hannah:
I do not understand it...... What is the scale factor for 9 cenimeters = 1 meter
Answered by Penny Nom. |
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Formula when i know the GST total |
2017-10-31 |
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From Duncan:
HI - I've added up the GST from a pile of receipts and would like to know what the total cost of goods would be without GST. I don't want to add up 100's of receipts again with the cost before GST but I do need this total cost.
i.e.) I know I paid $400 GST, what would the formula be to find out the cost of what I purchased before taxes? Your help is much appreciated!
Answered by Penny Nom. |
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formula when i know the GST total |
2017-10-31 |
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From Duncan:
HI - I've added up the GST from a pile of receipts and would like to know what the total cost of goods would be without GST. I don't want to add up 100's of receipts again with the cost before GST but I do need this total cost.
i.e.) I know I paid $400 GST, what would the formula be to find out the cost of what I purchased before taxes? Your help is much appreciated!
Answered by Penny Nom. |
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Surface area of a hemisphere |
2017-10-28 |
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From Shaina:
If the total surface area of a hemisphere be 36.22/7 cm then its radius will be 3 cm is it true or false
Answered by Penny Nom. |
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Adding fractions |
2017-10-27 |
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From Sandy:
virinchi distributed 4/7 of cake to his friends 1/3 of it to his family members which part of cake is remaining?
Answered by Penny Nom. |
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f(x)=-x^2-6x find f(x-2) |
2017-10-27 |
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From Kenneth:
f(x)=-x^2-6x find f(x-2)
Answered by Penny Nom. |
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Solve 2cos^2 x + sin x = 2 |
2017-10-25 |
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From Yamama:
hello ! I need help to solve this equation :
2cos^2 x + sin x = 2
Thank you very much
Regards
Answered by Penny Nom. |
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11% of a central angle |
2017-10-22 |
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From Hope:
How do you turn a percentage in to a central angle eg. 11%
Answered by Penny Nom. |
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A tangent to a curve |
2017-10-22 |
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From Jasem:
Suppose that
f(x)=(3x-3)^1/2.
(A) Find an equation for the tangent line to the graph of f(x) at x=2
(B) Find all values of xx where the tangent line is horizontal, and enter them as a comma-separated list (e.g., 2,-3,6). If there are none, enter none.
Values of x
Answered by Penny Nom. |
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Sampling distribution |
2017-10-16 |
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From Esther:
I need 4digits combination of 235689 and without replacement. Thanks
Answered by Penny Nom. |
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Salary plus commission |
2017-10-16 |
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From Natasha:
Veronika works at Future Shop and earns ₱10.50/h plus 6% commission on sales. Last week Veronika worked 40 hours. What was Veronika’s weekly gross salary if her total sales were ₱2050?
Answered by Penny Nom. |
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The distance between the origin and a moving point on a graph |
2017-10-16 |
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From Paulina:
Find the rate of change of the distance between the origin and a moving point on the graph of y=x^2 +1 if dx/dt=2 centimeters per second
Answered by Penny Nom. |
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