Mathematics

When triangles have a common side or angle, what property do you use to prove it congruent to itself

-symmetric -subtraction -transitive -reflexive-Reflexive. Whenever youre wanting to say something is equal to itself, or something is congruent to itself, etc., youre talking about a reflexive proper

Ten points for a step by step explanation of this problem

I really do not understand how to solve this problem with these variables. Please help me 0.270v^2/c^2=1-v^2/c^2 v=0.887c. I really need to know how to get 0.887 I am getting 0.963 or 0.854. I am gues

Help in Independence Probability Again

I need help again -__- A fair die is rolled and then n fair coins are tossed, n being the number shown on the die. What is the probability that no heads are shown? Answer key says its 63 / 384.-Prob

How do you solve Ln 5 - Ln x = 3

Im doing my math homework and I cant understand the example in the book. If you can help me I very much appreciate it. Thank you.-Simplifies to.... ln(5/x) = 3 5/x = e^3 x = 5e^(-3)-Property of log

Help with intersection of two points please :)

1a) show the points of intersection of y=x(4-x) and y=x^2(7-x) are given by the solutions to the equation x(x^2-8x+4)=0 (3 marks) The point A lies on both of the curves and the x and y coorinates of

What would be the ratio of these numbers

My objective is to make a Parcheesi game board in a bigger scale for my elderly, visually impaired mother.The directions I found explain how to make one on a 13 inch square.My square is 22 inches, sin

Math help please , i haven't done math in years

Name the quadrant in which the following points lie. a.( 4, 5 ) b.(-3, -7) c.( 4, 0 ) d.( 5, -2) Find the slope of the line that contains the points (-4, 8) and (-2, -5) Find the slope of the line 3

What's 5 km + 8 m in the metric system

1000m = 1km, so 5km = 5,000m. 5,000m + 8m = 5,008m. Or 5.008km.-convert to equal units, then do the math. 5000 m + 8 m = 5008 meters or 5 km + 0.008 km = 5.008 kilometers

A math problem, please show how you do it, and the answer

A book was printed using a total of 255 digits for the page number (pg.42 = 2 digits ) How many numbered pages are in the book?-the first nine pages used 9 digits the next 90 pages used 2 digits each

Write equation for an ellipse with foci (±3,0) and major axis 10 units long

the answer i got was x²/25 + y²/16 = 1 ... can anyone confirm for me? please and thanks.-Note that the ellipse is centered at the origin since the foci have the form (±c, 0). Also, since the foci lie

Natural base problem...is this how to do this

y=.05e^-3x, y=.02 dividing .05/.02, and then working it out... works out to 115.132 ???-Sorry but I got a different answer .02 = .05e^-3x 2/5 = e^-3x log(2/5) = -3x * log(e) x = log(2/5) / -3 x = 0

Solving inequalities..PLEASE HELP!

How can I solve these inequalities??? 1) x^3-5x^2+2x+8≥0 2) 2(x^3-2x^2+3) please help!!-1) If you plug in x=(-1) in x^3-5x^2+2x+8, we get (-1)-5-2+8 which is 0 This shows x+1 is a factor of x^3-5x^

Write 30% as a fraction.

1 Write 30% as a fraction.-30% is the same as 30/100, which can be simplified down to 3/10.-Think about it this way, 30 percent means 30 per a hundred, because, cent mean a hundred. 30 per a hundred i

How would I solve this : 5x - 1 + x + 2 = 5x

What are you trying to do find X? 5X-1+x+2=5x (subtract the 5x) -1+x+2=0 (add -1 and 2) x+1=0 (subtract 1 on both sides) x=-1 :)-5x + x -1 + 2 = 5x(Rearrange equation so that like terms are with each

Arc length of the curve x=y^(3/2)

I dont get this at all, it looks straightforward but the answer is pretty weird. Can someone explain what swhould I do to solve this-x = y^(3/2) dx/dy = (3/2) y^(1/2) ( dx/dy )^2 = (9/4) y 1 + (dx/