09/05/16

I need help
a) Solve 3x2 + 7x – 6= 0   (I can do this)   b) Hence state the positive value of y for which 3/y2 + 7/y – 6= 0.    (I can't understand this part. the solution shows that 1/y= 2/3 but why? I... more
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09/04/16

the mass of one hydrogen atom is 1.67 x 10^-24. Find the mass of 80,000hydrogen atoms
express in scientific notation
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09/04/16

Determine the mass of 5.33x10^23 atoms Cl. Answer in grams.
Determine the mass of 5.33x10^23 atoms Cl. Answer in grams.
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09/04/16

Free fall physics word problem
In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a helicopter. He is so intent on gripping the ladder that he lets go of his broefcase when he is... more
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09/03/16

Please need your help
A ball is attached to a spring, which is stretched and then let go. The height of the ball is given by the equation y = −1.07 sin (4π/5 t + π/2 ) +1.52where y is the height above the grounding... more
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09/03/16

Classify -7x^5-6x^4+4x^3 by degree and by number of terms
i don't get the question or what to do 
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09/02/16

If the coordinates of the endpoints of a diameter of a circle are.............
If the coordinates of the endpoints of a diameter of a circle are (-2,-1) and (2,3) , how long is the radius ofthe circle?
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09/02/16

what is the point of intersection of the linear system x=5 and y=-4
what is the point of intersection of the linear system x=5 and y=-4
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09/02/16

How to evaluate 6 ÷ 2(1+2) =? Is 2(1+2) a monomial? A single quantity?
The issue is wether 6 ÷ 2(1+2) can be reduced to 6 ÷ 2 · 3 = 9 Or should be 6 ÷ 2(3) = 6 ÷ 6 = 1   its an argument with bizarre attempts at proof.    Thanks
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09/02/16

A hiker is climbing a steep 11 degree slope....
A hiker is climbing a steep 11degree slope . Her pedometer shows she has walked 1400m along the slope . How much elevation has she gained? Express the answer to 2 sig figs with the appropriate... more
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09/02/16

Exponential Function
Find a formula for an exponential function that passes through the points (0,5) and (3,40).
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09/02/16

If a quadratic equation has only one real solution, then can it or can it not be factored? Why?
The quadratic equations contain integer coefficients.
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09/01/16

Multiplying exponents with different bases
-33 * -22    Is the answer -108? 
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09/01/16

the width of a rectangle is 5 meters less than the length. the perimeter is 42 meters. find the length and the width
please help
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09/01/16

kenda has $7.50 in nickels and quarters.If she has 12 more quarters than nickels, how may of each coin does she have?
word problem 
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09/01/16

Use f(x) = log3(9x) and g(x) = 3^x
Use f(x) = log3(9x) and g(x) = 3^x (a) Find f(g(x)) and simplify For this one I am confused because I am not sure how to deal with logs of a different base but this is my... more
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09/01/16

The sum of two times a number and 11 is -7
The sum of two times a number and 11 is -7
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09/01/16

Distance Problem
On his way to visit soren, peter averaged 7mi/h on his skateboard and 4 mi/h walking. If soren lives 6 miles away and the whole trip took 1 h, how many miles did Peter travel by skateboard? (Hint:... more
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08/31/16

Diffrence of a number times 8 and 6 equals 3
I dont know how to arrange the expression the "diffrence" throws me off . 
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08/31/16

problem with integers
I am given the following problem in algebra:   Assume x and y are two odd numbers and x/y is an integer. Which of the following statements are true? 1. x + y is odd. 2. xy is odd. 3. x/y is... more
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08/31/16

By what factor must you multiply a number in order to double its square root
By what factor must you multiply a number in order to double it's square root.
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08/31/16

Eight times the difference of a number and 2 is the same as 3 times the sum of the number and 3
I did help can some explain how to do it 
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08/30/16

There are three consecutive even integers. The square of the first number is six less than five times the sum of the second and third.
What are the three numbers? Also there are 2 different sets of three numbers that fit this description. Please give both of them. (Your answer should look like this "6,8,10" and "24, 26, 28")
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08/30/16

How many electrons does a neutral deuterium atom have?
How many electrons does a neutral deuterium atom have?
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08/30/16

a number less than 37 is less than or equal to 25
 It is under the category of Algebra, and im solving for x.
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