05/07/15

Solving for a Variable that appears in an equation more then once.
1       1        1 __ + __  =  __   ; solve for s c       4        s   The LCD is (c)(4)(s) I have multiplied each of the 3 fractions by the LCD. I now have the following:   4S+CS=C4   I... more
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05/07/15

A school playground is a 25 m by 40 m rectangle.
A school playground is a 25 m by 40 m rectangle. The school increases the width to 40 m and increases the length so that the original rectangle and the new one are similar. By how much does the... more
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05/07/15

watches oringinal price is$4.40. sold it for $31. whats the percent of increase?
Please help me!!!!!!!!!!!!!
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05/07/15

tan^2x+sec^2x=1 true or false? for ALL values of x
tan^2x+sec^2x=1 true or false? for all values of x   2) cos2a=2cos^2a-1 for ALL values of a  true or false?    3) sin(-x)=-sinx for all values of x true or false?     
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05/07/15

one moon is full every 32 days, the other is full every 44 days, if both moons are full tonight, how long will it be until they are full again at the same time?
Math word problem.
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05/07/15

Find the solution of the logarithmic equation
ln x=9 in terms of logarithms, or correct to four decimal places. Your answer is
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05/07/15

How do I do this?!?!?
In the coordinate plane, the points X7, 4, Y−9, 6, and Z−−3,5 are reflected over the x -axis to the points X ', Y ', and Z ', respectively. What are the coordinates of X ', Y ', and Z ' ? WHAT
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05/06/15

Using a Pythagorean identity we see that the equation sin x + sin^2 x + cos^2 x = 1 is equivalent to the basic equation________
whose solutions are x =________ for any integer k.
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05/06/15

Use the Laws of logarithms to rewrite the expression
log2 (x19y8)   in a form with no logarithm of a product, quotient or power. After rewriting we have  log2(x19y8)=Alog2x+Blog2y   with the constant A=____ and the constant B=____
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05/06/15

Write this expression in the standard form a + bi.
Write this expression in the standard form a + bi. (sqrt(3)(cos10deg+isin10deg))^6a = b =
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05/06/15

Help solve my math problem please!
Lookout station B is located 6 mi due east of station A. The bearing of a fire from A is S 9°50'W and the bearing from B is S28°50'W. Determine the distance from the fire to B (to the nearest tenth... more
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05/05/15

Convert to polar form. 6R-11U
Convert to polar form.  6R-11U
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05/05/15

Solve this equation: square root of x+4=0 and i need to check for extraneous solutions
Square root equations
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05/05/15

Find an equation for the nth term of a geometric sequence where the second and fifth terms are -24 and 1536, respectively.
Find an equation for the nth term of a geometric sequence where the second and fifth terms are -24 and 1536, respectively. an = 6 • (-4)n + 1 an = 6 • 4n an = 6 • 4n - 1 an = 6 • (-4)n - 1
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05/05/15

how do you solve a rational equation
√4z+1=3+√4z-2
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05/05/15

system of equation
Translate to a system of equation but do not solve. One evening 1400 concert tickets were sold for the Fairmount Summer Jazz Festival. Tickets cost  $30 for covered pavilion seats and $10 for lawn... more
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05/05/15

Trig help please
A set of girls heights is distributed normally with a mean of 54 inches and a standard deviation of 3.5 inches Between which two heights should approximately 95% of the heights fall
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05/05/15

Express the equation in exponential form (a) ln 2 = x is equivalent to e^A=B
A= B=2   2. ln x = 3 is equivalent to e^C=D   C=3 D=
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05/05/15

Consider the rational function f(x) = 2x²-9x-5 ÷ 3x³+ 3x²-6x.
Without a calculator, identify, if possible, the vertical asymptotes, horizontal asymptotes, slant asymptotes, x-intercept(s), and y-intercept(s). Then find extra points. State the domain and range... more
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05/04/15

Can't remember how to do this!
A six-sided (fair) die is rolled 5 times. Find the probability that the number 2 came up at least 4 times.    Final is tomorrow and I have no clue how to do this! Please help!
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05/04/15

What is the price per topping at Bill's Pizza Place?
Wes bought a pizza with 2 toppings from Bill's pizza place for $11. Lisa bought a pizza with 5 toppings from Bill's Pizza Place for $14.75. Each topping at Bill's Pizza Place cost the same... more
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05/04/15

What is the exact value of arccos (cos(3p/2) )
I am so lost please help
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05/04/15

math questions
The names of 10 women and 7 men are entered in a sweepstakes drawing. Two names are drawwn at random in succession.  What is the probability that  A the First name is a man and the second is a... more
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05/04/15

Suppose the value of the U.S. dollar decreases 3.1% per year. Find the value of a U.S. dollar, to the nearest cent, in 6.5 years.
 Using the A=Pert formula of increasing and decreasing 
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05/04/15

What percent of scores on this test will exceed 140?
Scores on a particular intelligence test are essentially normal with mean of 100 and standard deviation of 20. I have a statistics final today and im lost on how to solve this. I need a step by... more
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