So b/10 has to be -1, that means b is -10
Answer:
The student assumed he was asked to factor
(a^2 - b^2)
Which is equal to
= (a+b)*(a-b) (His response)
But, he was asked to simplify
(a^2 + b^2)
Which has imaginary roots, and can be factored as:
(b +ai)(b-ai)
D would not correctly solve the problem it is adding more kittens instead of eliminating the ones already known
42%
You have essentially a fraction, 21/50, which gives you a decimal of 0.42, or 42%.
(Flipped a total of 50 times, of those, it landed red side up 21 times, so 21/50)
I had to answer the same exact question from another person.
Anyway, Since your friend paid 25%, you'de divide 25 by 5 which would equal 5. So, 25÷x
25÷(5).
Hope this helped
