01/27/16

In triangle ABC, the length of side AB is 16 inches and the length of side BC is 25 inches. Which of the following could be the length of side AC?
In triangle ABC, the length of side AB is 16 inches and the length of side BC is 25 inches. Which of the following could be the length of side AC?
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01/26/16

Rockport is 40 miles due north of the airport, and Springtown is 75 miles due east of the airport. How far apart are Rockport and Springtown?
 i need the number of miles
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01/26/16

Speed of two trains
The speed of an Amtrack train is 14 miles per hour faster than a freight train . The Amtrack train travels 400 mi in the same time the freight train travels 330 miles.  How fast is each train going?
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01/25/16

Let u, v, w, x in R^2 be vectors. If u is a linear combination of v and w and v is a linear combination of...
Let u, v, w, x in R^2 be vectors. If u is a linear combination of v and w and v is a linear combination of w and x, show that u is a linear combination of w and x
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01/25/16

Write the polynomial function, in standard form, that has zeros -3, 4, and 1:
A: x^3 - 8x^2 + 5x + 12 B: x^3 - 2x^2 - 13x - 12 C: x^3 - 8x^2 + 19x - 12 D: x^3 - 2x^2 - 11x + 12 E: x^3 + 2x^2 - 11x - 12
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01/23/16

How much water should be added to 16 ml of? 12% alcohol solution to reduce the concentration to? 8%?
Question on a math quiz I got wrong but would like to know what the correct answer is.
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01/21/16

A sample of sodium containing Avogadro's number of atoms has a mass of 
This question seems really hard for me I really don't get it my teacher  explained it and I don't really know what it means..
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01/21/16

Find a formula for the line parallel to the line y=110-8x and containing the point (7,56)
Can someone show me step by step on how to solve this problem?
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01/21/16

how to find the displacement
I am very confused on how to find the displacement
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01/20/16

What is the magnitude of his displacement?
John walks 1.00 km north, then turns right and walks 1.00 km east.  His speed is 1.50 m/s during the entire stroll. a) What is the magnitude of his displacement, from beginning to end? b) If Jane... more
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01/20/16

When will the strains have the same number of cells?
A group of scientists studied the effect of a chemical on various strainsof bacteria. Strain A started with 12000 cells and decreased at a constant rate of4000 cells per hour after the chemical was... more
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01/20/16

place the numerals 1 through 8 inclusive in the circles on the vertices of the cube so that the difference of any two connecting circles is greater than one
please help
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01/20/16

equation that is parallel to the equation 3y=-x+5 and through point (0,-3)
solve problem
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01/19/16

Urgent geometry help needed?
i have a couple of geometry word problems. If you can include an image showing the work, it would be greatly appreciate. Thank you.   1. Explain how to find the median and centroid of a triangle.... more
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01/19/16

Idk how to do the parallel slope thing for geometry... One question is : through (2,3) parallel y=x+1
through (2,3) parallel y=x+1
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01/19/16

finding a polynomial given roots
roots -1,3,1/2
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01/19/16

find the slope-intercept form of the line satisfying the given conditions.
Slope 6/7, y intercept 4
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01/18/16

If a sample of an element has a mass of 7.7grams and contains 0.285moles, what is the element?
I need help on this. I am clueless
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01/18/16

Solve the system of equations using substitution...
y=-6x+21 -3x-3y=-18
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01/18/16

What are the dimensions of the rectangle
The area of a rectangle is 65 yd2 , and the length of the rectangle is 3 yd less than double the width. 
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01/18/16

Atraeus is solving the quadratic equation by completing the square
7x2 – 14x + 6 = 0      7x2 – 14x = –6     A(x2 – 2x) = –6 What is the value of A? –14 2 7 6
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01/18/16

Find the two standard angles between 0° and 360° whose cosine...
a) Find the two standard angles between 0° and 360° whose cosine value is -0.7. Round your answer to 1 decimal place.   b) Find the two standard angles between 0° and 360° whose tangent value is... more
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01/18/16

The first few steps in solving the quadratic equation 9x2 + 49x = 22 - 5x by completing the square are shown. 9x2 + 49x = 22 - 5x9x2 + 54x = 22 9(x2 + 6x) = 22
Which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
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01/18/16

Find the measure of an angle such that the difference between the measures of its supplement and 3 times its complement is 10 degrees?
Geometry question dealing with complement and supplement angles
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01/17/16

Down below is the question... Can you please show work and answer thanks!
The volume of a gas is 23.6 mL at 21 degrees celsius and 0.855 atm. What will the volume be at 12 degrees celsius and 0.998 atm? 
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