DE=21 That’s the right answer
Answer: 1400 students
Explanation:
Total = 4000
Senior = 1/8 x 4000 = 500
Senior not in favor of debate = ( 1 - 1/5) x 500 = 400
Non senior = 4000 - 500 = 3500
Non-senior not in favor of debate = (1 - 5/7) x 3500 = 1000
Total = 400 + 1000 = 1400
The given trinomial can be factored using the factorization method.
x² + 4x - 21
= x² +7x - 3x - 21
= x(x+7) - 3(x+7)
= (x+7)(x-3)
Thus, (x+7)(x-3) is the factored form of the polynomial.
So the correct answer is option B
Explanation:
The formula for getting the ROI or Return of Investment is:
In the problem, the initial value is $15,500 while the final value is $12,500.
Plugging these data into the formula above, we get:
Then, simplify.
Answer:
The total return on Jill's investment is -19.4%.