lookitswill
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lookitswill:
Group Title
Permutations/Combinations:
A coin is tossed 20 times and the heads and tails sequence is recorded. From among all the possible sequences of…
 updated one year ago
 9 replies
 1 Medal
Mathematics

lookitswill:
Group Title
permutations: How many distinguishable 11 letter "words" can be formed using the letters in CHATTANOOGA? I got 1663200.
 updated one year ago
 No Medals Yet
Mathematics

lookitswill:
Group Title
Gaussian Elimination answer check please!
2x+yz=0 I got x=56/3, y=20/3, z=8/3
xy+2z=3
…
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

lookitswill:
Group Title
Find the vertex focus and directrix of y6^2+6y+8x+25=0. I need help re arranging the equation to a standard parabola equation
 updated one year ago
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Mathematics

lookitswill:
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If the three angles of a triangle measure 3x, 4x and 5x, respectively, what is the measure of the largest angle in the triangle?
 updated one year ago
 3 replies
 1 Medal
Mathematics

lookitswill:
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What is the height of the building pictured below if its shadow is 100 ft. long?
 updated one year ago
 4 replies
 1 Medal
Mathematics

lookitswill:
Group Title
a sphere is contained in a cube, tangent to all six faces. Find the surface area of the cube as a function of the radius of the sphere.
 updated one year ago
 2 replies
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Mathematics

lookitswill:
Group Title
The base of an isosceles triangle is half as long as the two equal sides. Write the area of the triangle as a function of the length of the …
 updated one year ago
 3 replies
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Mathematics

lookitswill:
Group Title
How much 10% solution and how much 45% solution should be mixed together to make 100 gallons of 25% solution?
How can I solve this graphi…
 updated one year ago
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Mathematics

lookitswill:
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How much 10% solution and how much 45% solution should be mixed together to make 100 gallons of 25% solution?
The equation in the back of t…
 updated one year ago
 4 replies
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Mathematics

lookitswill:
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f(x) {x +2, if x<0
{ 2, if x > or equal to 0
…
 updated one year ago
 10 replies
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Mathematics

lookitswill:
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6x7 = 6 x3
since it's in abs value, would it be 73 or 7+3? < when I add over x3
 updated one year ago
 14 replies
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Mathematics

lookitswill:
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After I used quadratic formula for 3x^2+6x5<or equal to 0, I got 1 + {1sqrt(6)}/3. Is my answer right? if not, what else would I have to …
 updated one year ago
 11 replies
 1 Medal
Mathematics

lookitswill:
Group Title
solve the inequality:
3x^2+6x5<or equal to 0
 updated one year ago
 2 replies
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Mathematics