Bob is building a wooden cabin. the cabin is 30 meters wide. he obtained a bunch of 17 meters long wooden beams for the roof of the cabin. naturally, he wants to place the roof beams in such an angle that each pair of opposite beams would meet exactly in the middle. what is the angle of elevation, in degrees, of the roof beams?

Step-by-step explanation:

The answer is 28.1 degrees

Hope It Helped You!!!

28.07°

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

Based on the information given to us in the question I have created an illustration better demonstrating the situation. We can see that we have the base length and hypotenuse length. Now we need to find the value of x. We can find the value by using the following formula.

.... find the inverse by using arccos

Finally, we can see that the degree of the angle x is 28.07°

I hope this answered your question. If you have any more questions feel free to ask away at .

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

c

step-by-step explanation: