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Factoring |
2012-04-26 |
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From Amanda:
y=x^2-9x
Answered by Penny Nom. |
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A circle inscribed in a triangle inscribed in a circle |
2012-04-26 |
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From Maty:
How do i find the area of a triangle inscribed a circle while another smaller circle is circumscribed by the same triangle and the radius is 8.
Answered by Chris Fisher. |
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The exponential form of log8=P |
2012-04-25 |
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From Kristina:
what is the exponential form of log8=P
Answered by Penny Nom. |
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The circumcentre and orthocentre of a triangle |
2012-04-25 |
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From Nazrul:
The circumcentre and orthocentre of a triangle is given. A point on a side of the triangle
given. A vertex of the triangle on the circumcircle is also given.
How can I draw the triangle?
Please Help me.
Thank you for answering my previous questions.
Answered by Chris Fisher. |
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How to find the base length of a isosceles triangle if only the sides are given? |
2012-04-25 |
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From aqilah:
how to find the base length of a isosceles triangle if only the sides are given?
Answered by Chris Fisher. |
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A puzzle with a triangle and 57 |
2012-04-25 |
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From sharon:
Question from sharon, a parent:
We have been battling with this for days and cant find any solution -
Using each of the following numbers once, fill all the spaces in the triangles so that each side of the triangle adds up to 57
numbers are 11,12,13,14,15,16,17,18,19
diagram is -
Any ideas ? this has to be in in just over 24 hrs ......help!
Answered by Chris Fisher. |
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A sloped yard |
2012-04-24 |
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From William:
Trying to calculate fill dirt for leveling a sloped yard to place a slab. Slab is 30'x40', yard slopes from corner #1 south 40' to Corner #4 drop is 11". From corner #1 east 30' to corner #2, drop is 11 1/4". From corner #1 southeast at a 45 degrees, 50' to corner #3, drop is 19 3/4". Corners numbered in a clockwise direction.
Answered by Penny Nom. |
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The circumcentre, centroid and orthocentre of a triangle |
2012-04-24 |
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From Nazrul:
The circumcentre, centroid and orthocentre of a triangle is
given. The distance between circumcentre and orthocentre is also
given.
How can I draw the circle?
Please Help me.
Answered by Chris Fisher. |
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A parabolic bridge |
2012-04-24 |
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From Adiba:
A bridge constructed over a bayou has a supporting arch in the shape of a parabola .Find the equation of the parabolic arch if the length of the road over the arch is 100 meters and the maximum height of the arch is 40 meters.
I did the problem but not sure is it correct .
I did like this f(0)=0we get c=40 if we took quadratic equation in x for a down ward parabola then how to find b and a please show me the answer of either a or b .Or I should use the standard form of parabola y=a(x-h)^2+k then how to find a,h,k please help me
Answered by Penny Nom. |
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2x^2+5x+2 |
2012-04-23 |
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From eddie:
2x^2+5x+2
Answered by Penny Nom. |
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A common chord to two circles |
2012-04-22 |
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From Nicole:
What is a common chord between two circles and how is it found in the problem: Two circles intersect and have a common chord, the radii of the circles are 13 and 15, the distance between the circle's centers is 14, find the common chord.
Answered by Penny Nom. |
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Gray siding and stone chimneys |
2012-04-22 |
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From lupita:
Fifty houses are on the north side of a river. The 2nd house has gray siding, and every 5th house after that also has gray siding. The 11th house has a stone chimney; every 3rd house after that also has a stone chimney. How many of the 50 houses have stone chimneys but do not have gray siding?
Answered by Penny Nom. |
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The sarsen circle |
2012-04-21 |
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From Firdous:
I found the circumference but after what to do I am not getting the question is.The diameter of the sarsen circle is 33 meters,since there were originally 30 sarsen stones located on the circumference, how far apart wold the centres of the stones have been?Round to the nearest tenth of a meter.
Answered by Penny Nom. |
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The area of a quadrilateral |
2012-04-21 |
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From Rajat:
calculate the area ABCD in which AB is 48'1'',BC is 98'4'',CD is 61'4'',DA is 102'10'',AC is 110'3'',BD is 116'9''.
Answered by Penny Nom. |
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Golf for 12 |
2012-04-20 |
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From glenn:
need to schedule 12 players for a 20 week season
Answered by Victoria West. |
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