Area of rectangle = length × width 300 = (x+10) × x 300 = 10x + x^2 Now we have the equation y=x^2 + 10x - 300 We can factor this equation to get our zeroes, which are: -5(1+sqrt(13)), 5(sqrt(13)-1)
We only use the positive zero because we can't have a negative dimension.
Honestly, I'm not the best with this part, but I think you got it right
A complimentary angle is when the angle is 90 degrees, but the only 90 degree angle ( L ) is not an option. What you put for the other ones makes sense to me too, so I would say just go to the next one
47 because start at 1 and 3 add the two together and then that is how you get the next number in this sequence . Which is 4+previous nunber which is 3= 7 7+4=11, 11+7=18 11+18=29 , and 18+29=47 Does this help you any