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Since 1+0 is 0 and 1 x 0 is 0. We can concur that the answer to this question 4/9.

(that's actually the answer)

For some reason it showed you as a guest and they always get it wrong. Sorry!

Btw, I have confidence in my 1%  

Chose one of these to solve your question:

sin(D) = EC / X

cos(D) = 12 / X

tan(D) = EC / 12

Cos 38  =  adjacent leg  / hypotenuse

.788       = 12 /x

x = 15.2 ft

Really??? Why don't you draw this triangle, as I did, and prove to your self that I'm wrong?

3b + 4 = 13b - 9           solve for b

14a + 20 = 90             solve for a

This isn't a math question!

I am not sure what is needed here

   perhaps    y = 5/3 x   for the first one

                    y = -1/2 x  for the second one ???

In triangle ABC, a, b, c are opposite angles A, B, C, respectively.

If c^2 = 2ab and a^2 + c^2 = 3b^2, then find angle A.

Let the triangle ABC be an isosceles triangle         a = b = 2

                                                                                c² = 2ab 

                                                                                 c² = 8       c = sqrt(8)

                                                                               a² + c² = 3b²

                                                                               4 + 8 = 12

                                                                          ∠A = arccos[( c/2) / b] = 45º  

There is a 99% chance this is wrong 

can you do it by order cuz im confused

P(100) will be the profit from selling 100 bars

 P(100)   =   4.5*(100) - 40    = ........

  P(n) =   230 =  4.5 (n) - 40

               270 = 4.5 n

                   n = 270 / 4.5   = .......

P(n) = 230      means after selling 'n' bars the profit is 230 

In y = m x + b form      b is the value of 'y' where the graph crosses the y=axis  (5)

       m = slope      find the slope between two points  (0,5) and (2,1)    as   (y1-y2) / (x1-x2)  

Point H is an orthocenter in a triangle ABC. All 3 altitudes intersect at point H.

∠BAC + ∠HCA = 90 degrees

the answer is 40 degrees

the answer is 672

the answer is 0

Thanks

Well the number should be in the form 15x+5 where x is any integer. It has to be the least five digit positive integer. The smallest one is 10000 so we form an inequality.

15x+5>=10000

15x>=9995

x>=666 1/3

We round 666 1/3 up to 667. Substtute 667 into 15x+5 to get 10010.

Who says that you don't though? To be honest, it's pretty hard to tell online.