Mark M.

03/21/15

2÷(2/5)/(4/25)-3/14 {1/7+3/25 (1/7+2)} what is the answer and could you please outline and explain the steps in how you calculated it

im studying analytical methods in economics and finance, lecture does not explain the steps in how to calculate the equation, just wanted to have it broken down and explained.

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Quadratic Equations

03/20/15

Quadratic Equations

How many real-number solutions does the equation have? -7x^2+6x+3=0 How many real-number solutions does the equation have? 0=3x^2+18x+27

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Other

03/19/15

how to this problem

x - 2 = 8 x-1 1-x2 x+1

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Systems Of Equations

03/19/15

what are some systems of equations with the solution of (4,1) as a point

I need to learn about 3 systems of equations that has the solution of 4,1

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Algebra 1 Algebra Word Problem

03/19/15

Help Please???!!!!?

Find the Area of a square if each side has a length of 3x/7 cm.

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Area

03/19/15

Are of an equilateral triangle

Find the area of an equ. triangle with a apothem of 2ft.

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Factoring Trinomials

03/19/15

Faith tries to solve the equation x^2-3x=0 by first dividing both sides by x to get x-3=0. She concludes that the only solution is x=3. Is she correct? Explain.

this is factoring trinomials subject please help

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Math Word Problem

03/19/15

Math question involving D=RT

A runner competes in a 6-mile race. The year before her speed was 3mph slower and it took her one hour longer. What was her speed this year? How do I solve this? Thank you.

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Arithmetic Sequence

03/18/15

What is the 17th term of the arithmetic sequence 15, 19, 23, ... ?

What is the 17th term of the arithmetic sequence 15, 19, 23, ... ?Choose one answer. A. 79 B. 83 C. 87 D. 91

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Imaginary Numbers Complex Numbers

03/18/15

Find all complex numbers whose sixth power equals 64

Basically, written out, looks like (a + bi)^6 = 64

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Trigonometry Trigonometric Identities Trigonometric Functions

03/18/15

2cscx+5=1 solve on the interval [0,2p)

2cscx+5=1 solve on the interval [0,2π) a) π/3, 5π/3 b) π/6, 5π/6 c) 2π/3, 4π/3 d)7π/6, 11π/6 2) solve on the interval [0, 2π) 1+sin(theta)=(√3 +2)/2 a) π/3,... more

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Trigonometry Trigonometric Identities Trigonometric Functions

03/18/15

4cos^2(4x)-3=0

The value π/12 is a solution to 4cos^2(4x)-3=0. a) true b) false ??? Do I plug π/12 in place of x? Can you show the steps please? Thanks.

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Word Problem

03/18/15

one test tube contains some acid and another test tube contains an equal quantity of water. to prepare a solution, 20 gram of the acid is poured into the second test tube. then two third of the so... more

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Exponential Growth Math Problem

03/17/15

Exponential Growth Math Problem

Michael Jackson's original white glove is discovered and listed on eBay for auction. The initial bid is $1200 and the bids increase by 16% each hour. What is the bidding price of the glove after 24... more

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Trigonometry

03/17/15

sin(x) + cos(x) = a | sin(x) - cos(x) = ???

given sin(x) + cos(x) = a sin(x) - cos(x) = ??? A. 1B. Sqrt (1-a^2)C. 2 - a^2D. Sqrt (2-a^2)E. 1-a^2

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Pre Calculus

03/17/15

eccentricity

what is the eccentricity of:x^2/9 + y^2/81 = 1 ?(x+2)^2/36 + (y-4)^2/11 = 1?

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Algebra 2 Math Word Problem

03/17/15

logarithmic and exponential applications

For a certain strain of bacteria, k=0.783 when t is measured in hours. how long will it take 10 bacteria to increase to100? Please can you in depth explain it.

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Geometry Proofs

03/17/15