math
Are you sure the radius is 14"? That sounds more like diameter, which would make the radius 7". Regardless, let me give you some help so you can figure out the answer. Circumference = radius times 3.14 times 2 There are 5280 feet in a mile. With this info, you should...
math..word problem
Don't forget the one she ate before she gave 1/2 to Bill. I got that she started with 21.
geometry
I believe you are looking at the Inequality Theorem (T055) which states "the sum of the lengths of any two sides of a triangle is greater than the length of the third side." I think it will take you 10 or so steps to prove it. Good luck!
Math, for Elina
My problem is more with the diagonal being 42. Using a^2 + b^2 = c^2, the sides would not be 28 if the diagonal was 42.
pre algebra
Use FOIL (first, inner, outer, last) Multiply the first 2k*7k Then multiply the inner 7*7k Next, the outer 2k*-1 Finally, the last 7*-1 It will look like this: 14k^2 + 49k - 2k -7 Combine your like terms (the ks) and you are done! Hope this helps!
Pre-Algebra
1. A square has sides the same length so to find the area, you would have x times x So x^2 = 32 Find the square root of 32 and go one place to the right of the decimal, round if necessary. 2. The base of the figure would be x and since the height is two times that it would be ...
algebra
Just divide the total amount by the number of parts. In this case, 10.99/12.
math
I think you mistyped the perimeter. Set the problem up base i/perimeter i = other base/perimeter the multiply across the equal sign top to bottom then divide by the other number. using what you have given above, it would be 5/1 = 10/x 10 times 1 divided by 5 so the answer woul...
math
Just stick the y value into the equation and solve. 1. -5 =3x + 4 To get x by itself -4 from both sides -5 - 4 = 3x + 4 - 4 So -9 = 3x Now divide both sides by 3 -3 = x The rest are the same way.
Pre-Algebra
You might want to recheck your (8,3) For y, try 9 and 6. Just be careful that you write them in (x,y) form and not backwards since y the number on the left in this one.
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