10/23/19

A circle has two radii meeting at 60 degrees.
A smaller circle internally tangent to the original circle and is tangent to the two radii. Find the ratio of the length of the radius of the original circle to the length of the radius of the... more
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03/17/19

what is the leading coefficient and degree of the polynomial?
According to this equation what is the leading coefficient and degree of the polynomial?(-9u^3) +u+20-8u^7
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03/17/19

Inequalities in one triangle word problem.

Kristine and Lisa are working on their math homework, which involves dividing one digit natural numbers(the positive energy years one, two, three…) they disagree on one problem. Kristine says the... more
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03/16/19

x2/ 25 + y2/ 4 = 1 The minor intercepts are at (±2, 0) (0, ±2) (±5, 0)
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03/16/19

What does 'linear' mean in Linear Algebra?
Why Linear Algebra named in that way? Especially, why we call it `linear`? What does it mean?
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03/15/19

Can you explain as simply as possible how to do a proof by induction?
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03/15/19

Is the function (f(x) =x-[x] periodic? If so, what is the period?
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03/14/19

Find a polynomial with degree n=3, with zeros of 1 and 5i. Where f(-1) = -104
This is as far as I got(x-1)(x+5i)(x-5i)(x-1)(x^2+25)x^3-x^2+25x-25f(-1) = (-1)^3 - (-1)^2 + 25(-1) - 25 = -1 - 1 - 25 - 25 = -52 this does not equal -104, but is exactly half, what am... more
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03/14/19

Choose any function for f(x). Describe the difference in the graphs of f(5x) and f(−5x).

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03/14/19

Looking for an intuitive explanation why the row rank is equal to the column rank for a matrix?
I am looking for an intuitive explanation as to why/how row rank of a matrix = column rank. I've read the proof at http://en.wikipedia.org/wiki/Rank_of_a_linear_transformation and I understand the... more
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11/26/18

On your first four science tests, you score 82, 76, 88, and 84. What score must you get on the fifth test to get a mean score of 80?
I dont really know how to find the mean, and mostly if you need to add something to find a mean
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11/02/16

Write a quadratic in standard form using standard form. NO CALCULATOR (-1,2) , (-2,7) , (0,7)
Write a quadratic in standard form using standard form. NO CALCULATOR   (-1,2) , (-2,7) , (0,7)  
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11/02/16

Which of the following is equal to x-2/8x / 2-x/4x^2
A) -  1/2x     B) x/2     C) 1/2x     D) - x/2
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11/02/16

The expression 6y^2+13y-5 represents the area of a parallelogram. Which expression could represent the length of the base of the parallelogram?
A) 2y+1     B) 2y+5     C) 2y-5     D) 2y-1
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11/02/16

What is the quotient of 6x^2-31x+40/15x+40 / 2x^2-15x+25/x^2-5x in lowest terms?
A) 3x-8/3x+8     B) -(2x-5)^5/5x     C) - x/5     D) x(3x-8)/5(3x+8)  
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10/15/16

What type of angles do the pairs of exterior angles of a triangle form?
What type of angles do the pairs of exterior angles of a triangle form?complementarysupplementaryverticalobtuse
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10/03/16

Find the point equidistant from given points
For some reason I'm having a challenging time trying to figure out how to go about this problem. Do I use the midpoint formula or the distance formula maybe? Any help would be so appreciated... more
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09/17/16

Algebra word problem
Janet jogged for 10 miles and then cycled for another 45.5 miles. Her cycling speed was 6 miles per hour faster than her jogging speed. If her total time for jogging and cycling was 4.5 hours at... more
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06/13/16

variation inversely
Find an equation of variation where y varies inversely as x and y = 7when x=14.
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06/02/16

Add 3 / (x2 - x - 30) + x / (2x2 + 7x - 4)
the x is squared in (x2-x-30) and the 2x is squared in (2x2+ 7x -4)
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06/01/16

i need help with this question
John and Sarah are both saving money for a car. The total amount of money John will save is given by the function f(x) =60+5x. The total amount of money Sarah will save is given by the function... more
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05/20/16

A dart hits a dartboard that is in the shape of a square with sides of 4 m.
  There are four congruent circles inside the square that are all touching. The shaded region is everything but the 4 circles. What is the probability that the dart will land in the shaded... more
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05/18/16

Finding an equation of a shiftd hyperbola with vertices
Finding an equation of a shiftd hyperbola with vertices (-1, -1) (5, -1) and focuses (-4, -1) (8,-1) also find the equation of asymptotes of this hyperbola and sketch its graph 
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05/18/16

Use ?, ?, ?, or both ? and ? to make a true statement. {10, 11, 12} ________ {10, 11, 12} ? ? ? and ? ?
Use ⊆, ?, ⊂, or both ⊂ and ⊆ to make a true statement.{10, 11, 12} ________ {10, 11, 12} ⊂ ⊆ ⊂ and ? ?
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05/18/16

how do you simplify a cubed variable?
ex. 3x^3+27x   thank you for any help
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