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�t�e�s�t/696256: A triangular plot of land has side lengths of 700 feet, 500 feet and 1000 feet. How many acres are contained in this field? ( 1 acre = 43 560 square feet).
can you please help me? thanks in advance
1 solutions

Answer 428911 by solver91311(16868) About Me  on 2012-12-20 18:11:28 (Show Source):
You can put this solution on YOUR website!


Please don't waste our time asking the same question twice.

John

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My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism




Quadratic_Equations/696259: Find the equation of parabola with a vertex at (2,-12) that passes through the point (0,0).
Can you please help me out? Thanks in advance.
1 solutions

Answer 428910 by solver91311(16868) About Me  on 2012-12-20 18:10:37 (Show Source):
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Already did this one. Please don't waste our time by posting the same problem twice.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism




Trigonometry-basics/696278: 2. For all θ where sin θ - cos θ ≠ 0, ((sin^2)(θ) - (cos^2)(θ) / (sinθ - cosθ) is equivalent to...
a.sinθ - cosθ
b.sinθ + cosθ
c.tanθ
d.-1
e.1


1 solutions

Answer 428907 by solver91311(16868) About Me  on 2012-12-20 18:07:39 (Show Source):
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John

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The Out Campaign: Scarlet Letter of Atheism



Trigonometry-basics/696281: A triangle has a base of 13 units, and the other two sides are congruent. If the side lengths are integers, what is the length of the shortest possible side?



1 solutions

Answer 428906 by solver91311(16868) About Me  on 2012-12-20 18:02:01 (Show Source):
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Yhe sum of the measures of the two congruent sides must be strictly greater than the measure of the longer side. Since the two sides are congruent and their measures are integers, the sum of the measures of the two sides must be an even number. 14 is the next even integer greater than 13, so:



Solve for

John

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My calculator said it, I believe it, that settles it
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Trigonometry-basics/696277: If the sum of two consecutive odd integers is 56, then the greatest integer equals:
a.25
b.27
c.29
d.31
e.33

1 solutions

Answer 428905 by solver91311(16868) About Me  on 2012-12-20 17:58:34 (Show Source):
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If is the larger of two consecutive odd integers, then is the smaller.



Solve for

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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Numbers_Word_Problems/696276: three more than twice a number is 37
1 solutions

Answer 428904 by solver91311(16868) About Me  on 2012-12-20 17:55:01 (Show Source):
You can put this solution on YOUR website!


What a clever and fascinating fact. What is it that you don't understand? What have you been asked to do? What have you tried so far?

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Quadratic_Equations/696261: A jewellery store owner studied his past records and found that on the average if he sells x articles of in one week then his weekly profit, P(x)= $ can be calculated using the equation p(x) = 100x - 5x^2/3. What is his maximum weekly profit?
Can you please help me? Thanks so much in advance.
1 solutions

Answer 428902 by solver91311(16868) About Me  on 2012-12-20 17:53:34 (Show Source):
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Depends. Do you mean:



or



Use parentheses to eliminate ambiguities when you render expressions in plain text.

For further information on plain text rendering of math see: Formatting Math as Text. Be sure to look at all four pages.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism




Rational-functions/696265: Can someone tell me all the zeros for the equation x^4+x^3-x^2-2
1 solutions

Answer 428901 by solver91311(16868) About Me  on 2012-12-20 17:43:21 (Show Source):
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No. You cannot find the zeros of an equation that is not an equation. There is no equals sign, so there is no equation.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism




Linear-systems/696260: Find the equation of parabola with a vertex at (2,-12) that passes through the point (0,0).
Can you please help me out? Thanks in advance.
1 solutions

Answer 428900 by solver91311(16868) About Me  on 2012-12-20 17:38:07 (Show Source):
You can put this solution on YOUR website!


If the vertex is (2,-12) and it passes through the origin, then symmetry says it must also pass through (4,0).

The general form of a parabola function is



So, if when , then



and if when , then



and if when , then



Solve the 3X3 linear system to get the coefficients a, b, and c. Use them to write your equation by substituting into:



John

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My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Probability-and-statistics/696244: what is the possibility of getting 9 out of 9 questions right on a test?
what is the possibility of getting 0 out of 9 questions right on a test?
1 solutions

Answer 428885 by solver91311(16868) About Me  on 2012-12-20 16:37:03 (Show Source):
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No way to calculate this from the incomplete information given. You need to provide the probability of getting each individual problem right.

John

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My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Graphs/696209: m=1/4 and passes through the point ( -2,16)

1 solutions

Answer 428881 by solver91311(16868) About Me  on 2012-12-20 16:26:56 (Show Source):
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Would it be asking too much of you to submit a complete question, describing what it is you need to do, what you don't understand, and what you have tried already?

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Angles/696243: I need to find the complement of angle A which is 81.2 degrees, so how would I go about finding the complement of angle A?
1 solutions

Answer 428874 by solver91311(16868) About Me  on 2012-12-20 15:47:31 (Show Source):
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The sum of measure of any angle that is less than 90 degrees and the measure of its complement is 90 degrees. Hence the complement of any angle less than 90 degrees is the difference between 90 degrees and the measure of the given angle.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Geometry_Word_Problems/696240: The length of a rectangle is 4 in. more than its width. If 2 in. are taken from the length and added to the width, the figure becomes a square with an area of 192 in.^2. What are the dimensions of the original figure?
1 solutions

Answer 428873 by solver91311(16868) About Me  on 2012-12-20 15:44:45 (Show Source):
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The square root of 192 is , so the original length must have been and the width

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Geometry_Word_Problems/696241: The position of an object moving in a straight line is given by s(t)=2t^2-3t, where s is in meters and t is the time in seconds the object has been in motion. How long will it take the object to move 10 m?
1 solutions

Answer 428871 by solver91311(16868) About Me  on 2012-12-20 15:33:47 (Show Source):
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Set and solve for

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Polynomials-and-rational-expressions/696202: "Find the roots of the polynomial equation." 2x^3+2x^2-19x+20
I tried factoring out a 2 but it is uneven. Can I still find the roots and solve the problem even when the x^3 coefficient is two?
I need this right now ASAP because I have an Alg. 2 final tomorrow, thanks
1 solutions

Answer 428870 by solver91311(16868) About Me  on 2012-12-20 15:32:32 (Show Source):
You can put this solution on YOUR website!


Start with the Rational Roots Theorem. If a polynomial equation with integer coefficients has a rational root, then that root must be of the form where is a factor of the constant term and is a factor of the lead coefficient.

Hence your possible rational zeros are:



Start testing the possible zeros one at a time using Synthetic Division. Review the process for Synthetic Division here (note: there are 4 pages to review).

Once you find one that works, you will have one of your binomial factors, and the quotient of the synthetic division will give you a quadratic trinomial that you can solve with the quadratic formula. Hint: start with -4.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Linear_Equations_And_Systems_Word_Problems/696234: Norah baked two batches of cookies. The first batch of cookies had c chocolate chips. The second batch of cookies had f fewer chocolate chips than the first batch.
If there were 24 cookies in the second batch, and each cookie had the same number of chocolate chips, which of the following expressions represents the number of chocolate chips in each cookie of the second batch?
1 solutions

Answer 428868 by solver91311(16868) About Me  on 2012-12-20 15:12:25 (Show Source):
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Which of what 'following expressions'? Are you new?

John

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My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Systems-of-equations/696233: could show me how to do y/4-3=-4
1 solutions

Answer 428867 by solver91311(16868) About Me  on 2012-12-20 15:11:17 (Show Source):
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Multiply both sides by 4. Then add 12 to both sides.

John

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My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Geometry_proofs/696232: ABCD is a rhombus. Explain why triangle ABC is congruent to triangle CDA?
1 solutions

Answer 428866 by solver91311(16868) About Me  on 2012-12-20 15:09:06 (Show Source):
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All sides of a rhombus are equal in measure, so AB is congruent to AD and BC is congruent to DC. Then BD is congruent to BD by reflexive equality. Hence ABC is congruent to CDA by SSS.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Money_Word_Problems/696218:
The band sponsored a car wash. During the first session, the students earned $78. During the afternoon session, they earned $54. That evening when people were on their way home from work, the students earned $81. If the band charged a whole dollar amount for each car, what was the charge per car?

1 solutions

Answer 428864 by solver91311(16868) About Me  on 2012-12-20 15:05:55 (Show Source):
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There is exactly one whole number that evenly divides 78, 54, and 81. That number is your answer.

John

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Linear-systems/696231: do u have any practice worksheets i can do I'm taking it a year early and my teacher has been absent the past week but we still have a test tomorrow

1 solutions

Answer 428863 by solver91311(16868) About Me  on 2012-12-20 15:03:56 (Show Source):


Miscellaneous_Word_Problems/696180: Ran for 7yards then took a loss of 5 yards how many yards will they need to get to first down
1 solutions

Answer 428862 by solver91311(16868) About Me  on 2012-12-20 15:03:26 (Show Source):
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Solve for

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Quadratic_Equations/696225: State the possible number of imaginary zeros of f(x) = 10x^3 - 4x^2 + 2x - 6.
1 solutions

Answer 428861 by solver91311(16868) About Me  on 2012-12-20 14:56:10 (Show Source):
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A polynomial function of degree has exactly zeros counting any multiplicities. Complex zeros of polynomials with real coefficients ALWAYS appear in conjugate pairs. So if is odd, the possible number of complex zeros is .

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



pythagorean/696223: When you solve the pythagorean theorem how can you tell if it is a right triangle or if it is not?
1 solutions

Answer 428860 by solver91311(16868) About Me  on 2012-12-20 14:52:15 (Show Source):
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Square the measure of each of the three sides. You will have one number that is larger than the other two. Add the two smaller numbers. If the sum is equal to the large number, the triangle is right. Otherwise not.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Linear_Equations_And_Systems_Word_Problems/696228: A consumer wants to purchase 1.5 L of antibacterial liquid hand soap. The bottles on the store shelf hold 16 oz, 32 oz, 48 oz, 64 oz. Which bottle comes to closest to containing the desired quantity?
1 solutions

Answer 428859 by solver91311(16868) About Me  on 2012-12-20 14:49:43 (Show Source):
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A liter is approximately 34 ounces.

John

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My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Linear-equations/696226: What is the slope-intercept and standard equations for these two points.
(-10,4) (-13,5)
1 solutions

Answer 428858 by solver91311(16868) About Me  on 2012-12-20 14:47:41 (Show Source):
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Use the two-point form:



where and are the coordinates of the given points.

Then arrange the result into the slope intercept form:

and the standard form: . Be careful, some text book authors and or professors require that A, B, and C be integers.

John

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My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



test/696216: A dog weighs 70 N on Earth. If the dog is sent to the moon, how would its weight change? How would its mass change?
1 solutions

Answer 428857 by solver91311(16868) About Me  on 2012-12-20 14:44:56 (Show Source):
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The dog would weigh roughly 70/6 N but its mass would be constant. Please ask your Physics and Astronomy questions on a Physics or Astronomy homework help site. Algebra.com is for math.

John

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My calculator said it, I believe it, that settles it
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Miscellaneous_Word_Problems/696061: The perimeter of a rectangle is 20 inches. The area is 16 square inches. Find the dimensions.
Your supposed to solve using a quadratic formula if that helps you at all.
1 solutions

Answer 428770 by solver91311(16868) About Me  on 2012-12-19 20:23:32 (Show Source):
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The perimeter of a rectangle is given by

From this we derive

The area is the length times the width, so area as a function of width is given by:



Which can be written



Rearranging to standard form and multiplying through by -1:



Using the quadratic formula:



where , , and we have:



Just plug in your given values for Perimeter and Area and then do the arithmetic. One of the roots will be the length (by convention the larger value) and the other will be the width.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Travel_Word_Problems/696064: I need help solving this problem. "John bought a used car. After he has owned the car for 12weeks he noticed that the cars odometer showed that it had gone a total of 33,245 miles. Its not week 32 and the car has 56,465 miles. How many miles a week has John put on the car? (per average)
1 solutions

Answer 428763 by solver91311(16868) About Me  on 2012-12-19 19:53:50 (Show Source):
You can put this solution on YOUR website!


Divide the difference in the mileage by the difference in the number of weeks.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Linear_Equations_And_Systems_Word_Problems/696044: For the line thru (2, -5) and (-1, 4), find x when y= 3
Please help I am very confused
1 solutions

Answer 428762 by solver91311(16868) About Me  on 2012-12-19 19:52:14 (Show Source):
You can put this solution on YOUR website!


Use the two-point form:



where and are the coordinates of the given points.

Once you have the equation, substitute 3 in place of y then do the arithmetic to determine the value of that results.

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Linear-equations/696054: What happens to the graph of the linear function y=2/7x-4 if the slope is changed to 1/2

1 solutions

Answer 428760 by solver91311(16868) About Me  on 2012-12-19 19:45:55 (Show Source):
You can put this solution on YOUR website!


so the graph with the slope is steeper than the graph with the slope .

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism



Age_Word_Problems/696057: how do you solve Alan, Bill, and Charlie are brothers. Bill is x years old, Alan is 1 year younger, and Charlie is 1 year older in algebra
1 solutions

Answer 428759 by solver91311(16868) About Me  on 2012-12-19 19:43:20 (Show Source):
You can put this solution on YOUR website!


Why are you wasting our time asking the same question twice?

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism