Answer:
It would be Choice B, since it divides to -1.5.
This is the same as when -3/2 is simplified.
Choice A would be wrong, since it would give you 1.5, due to a double negative = a postive, same with Choices C and D.
160 km - 100%
100%+30%=130%
160*130%:100%=208 (km) - <span>the number sought</span>
Well the formula for the quadratic equation is y = -b <u>+</u><span> √b² - 4ac / 2a
</span>Fill in the variables with the information where a = 2, b = 2, and c = -12.
The final answer is <span>y = -2 +</span><span> </span><span><span>√2² - 4(2)(-12) / 2(2)
</span>A simplified answer would be <span>y = -2 <u>+</u> </span></span><span>√4 + 96 / 4, which further simplifies to
</span>y = -2 <u>+</u> 10 / 4
This can be simplified into two answers, either y = -3 or y = 2
I believe it is B, I have been working it out on paper for a while.
is a set containing two elements - numbers 2 and 3
is a set containing one element - a set