2, 2sqrt19, 10sqrt 19, and the last can't be simplified.
I think you mean 10.8666667124646806=sqrt163
So what are you solving for? If x is a variable and it doesn't equal anything specific the answers are limitless.
What does x equal?
Ok so so we have 3/8 divide by -2. We know that dividing by a number is the same as multiplying by the reciprocal. Therefore we can rewrite it as 3/8*-1/2, which is much easier to see is -3/16.
No problem!
I'm a bit rusty though so I'd recommenf checking the second one.
There are two formulas I know of. Multiply the base and the height together, then divide by 2, or take the two sides that create an angle, multiply them and then multiply them by the sine of the angle they create.
Thanks for that addition Geno. That was a possiblity I did not consider.
If you do second and cos, it will pop up an inverse cos or cos^-1. Insert the .348 to get your angle.