I would use the centimeter to measure the height of a bird.
Ok so BFD is a 90 degree angle. So you know you have 43 in one of the spaces so that means all you have to do is take 90 and minus 43 which is 47.
12x^4 - 42x^3 - 90x^2 =
6x^2(2x^2 - 7x - 15) =
6x^2(2x+3)(x - 5) <==
If you solve the inequality the result is
4x - 3 <u>></u> 5<u>
</u> +3 +3
_________
4x <u>></u> 8 Now divide both sides by 4
x <u>></u> 2 Is the result of solving the inequality
Your solution set is all real numbers 2 and greater
Therefore, C {2,3,4) is your solution set
