08/04/17

Find an equation in the slope- intercept form for the line that passes through (-5,-7)
Find an equation in the slope- intercept form for the line that passes through (-5,-7) And is parallel to x + 9y = -37
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07/25/17

word problem
martha can rake the leaves in her yard in 4hours. her younger brother can do the job in 7 hours. How long will it take them to do the job together
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07/24/17

Dynamics and Forces - Conservation of Momentum
After a 1.30 x 10^2kg astronaut (incl. equipment) connects a safety line (length = 22.0m) to herself and to the spacecraft (mass = 2.80 x 10^3kg), she pushes against the craft and moves away at a... more
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07/24/17

For what value of x is the function f(x) =6x/Sin x undefined in the interval [π/2, 3π/2] ?
I haven't done math in a while so I've forgotten how to solve certain types of problems. 
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07/21/17

question is below please answer asap
A 3400 kg plane flying at a constant speed of 170 m/s is to do a vertical loop. What is the radius of the loop if the pilot feels three times his normal weight when he is at the top of the loop?
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07/11/17

The area of a mirror is 225 square inches, and its width is 13 3/4 inches. Will the mirror fit in a space that is 15 in. by 16 in.
I have to explain
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07/10/17

Calculus Please Help
A radar gun was used to record the speed of a swimmer (in meters per second) during selected times in the first 2 seconds of a race. Use a trapezoidal sum with 4 intervals to estimate the distance... more
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07/05/17

The volume of a rectangle solid is (x^4+3x^3+x+3) cubic inches. It's length and width are (x-3) and (x+1) inches, respectively. Find it's height.
Applying the concept
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07/05/17

U.S. unemployment, U (in person), from 2002-2012 can be modeled by the function U(t)=-0.0374t^3+0.5934t^2-2.0553t+6.7478, where t=0 represents 2002
t=1 represents 2003, and so on. The model indicates a 7.7% level of unemployment in 2008 (t=6). Find another year after 2008 with about the same unemployment level. Round your answer to the nearest... more
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07/05/17

The solutions of the equation x^n=1, where n is a positive integer, are called the nth roots of 1 or "nth roots of unity."
Explain the relationship between the solutions of the equation x^n=1 and the zeros of the complex polynomial P(x)=x^n-1. How many nth roots of 1 are there?
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05/06/13

Linda works at a pharmacy for $15 an hour. She also babysits for $10 an hour. Linda needs to earn at least $90 per week, but she does not want to work more than
I am really lost on this question. I thought I knew what it was, but when I looked in the book I was incorrect. If possible, I need all the work shown.
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03/05/13

In Physics, how do I go from a velocity vs. time graph to a position vs. time graph?
 I have the velocity vs. time graph already, I just need to change it to position vs. time.
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03/05/13

Physics Questions
A 0.14kg pinecone falls 16m to the ground, where it lands with a speed of 13m/s.  With what speed would the pinecone have landed if there had been no air resistance?
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03/03/13

Melissa drove at an average speed of 45 mi/h from her home in Memphis to visit her sister in Atlanta.
Melissa drove at an average speed of 45 mi/h from her home in Memphis to visit her sister in Atlanta. She stayed in Atlanta 10 hours, and on the trip back averaged 60 mi/h. She returned home 43... more
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03/02/13

How do you compute compounded interest, when it changes half way through?
You deposit $4000 in an account that pays 8% interest compounded semiannually. After 4 years, the interest rate is increased to 8.24% compounded quarterly. What will be the value of the account... more
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02/28/13

What is f(x)?
I dont understand how to solve quadratic functions. I'm supposed to solve f(x)-x^2+2x-3 by completing the square  but whenever I try to search how to do these kind of problems, I never see a... more
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02/28/13

a,b,c are matrices a + b + c = b + a + c true or false
a,b,c are matrices a + b + c = b + a + c true or false
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02/27/13

the square of a number is 19,what is the number?
heeeeeeeeeeelp meeeeeeeeee in myyyyy mathhhhhhhhh
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02/27/13

1/(x-3)-2/(3-x)=4/(x^2-9)
Solve for x. 1/(x-3)-2/(3-x)=4/(x^2-9)
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02/26/13

What is the decimal for 7/42?
i need help cause i just dont get this.
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02/26/13

Solve by substitution-7x-2y=11X-2y=11
HELP!!! 
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02/26/13

Quadratic Equation Help
I'm solving a quadratic equation which is 2x^2-x-10=0 and I know that a=2 b=-1 and c=-10 ans with the problem put it into the formula which is -(-10 +- √ -1^2-4(2)(-10) and when I get my answer I... more
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02/26/13

How do you find the X coordinate?
. . . on a coordinate grid . . .
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02/25/13

Problem: "-32 = x + 3" ... why wouldn't you just subtract "3" from each side of the equation to isolate "x" on the right side?
Problem: "-32 = x + 3" ... why wouldn't you just subtract "3" from each side of the equation to isolate "x" on the right side?
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02/25/13

please give me a right solution for (a+b)^4
please Give me an explanation for the correct answer.thanks
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