Answer: 275
How to get it: the ratio is 11:10 , therefore in total there is 21 to the ratio, (11+10), divide 525 by 21 and you get 25. To find out one side of the ratio you x25 by the side of the ratio you need, for this it would be 11x25, which is 275.
2x^2+2x-40=0
2x^2+10x-8x-40=0
2x(x+5)-8(x+5)=0
(2x-8)(x+5)=0
2(x-4)(x+5)=0
x=-5 and 4
If you graph it, the zeros are just the values of x when the curve meets the x axis...
Answer:
I think it's like 81%
Step-by-step explanation:
17 /21=.809
Answer:
Positive
Step-by-step explanation:
Looking for - r/2
Having that negative in front is basically saying
-1 * r/2
Based on where r is it is negative.
-1 × -r thus making the answer going to be positive due to negative × negative = positive
