To find out the number of real solutions, we use something called "the discriminant". This is usually given the symbol "<span>Δ", pronounced "delta"
</span><span> Δ = b^2 - 4ac, where a is the x^2 coefficient, b is the x coefficient and c is the integer
</span>
When Δ = 0, there is one real solution, when Δ < 0, there are no real solutions, and when Δ > 0, there are 2 real solutions
So, substituting the values in, we get:
Δ = (20)^2 - 4(-4)(-25) = 0
Therefore, there is one real solution to the polynomial given.
Don't hesitate to ask further questions!
Hope I helped!! xx
(b-5)+6
The difference of b and 5 can be written as b-5
If 6 is more than the difference of b <u>and</u> 5 then everything would be written as
(b-5) + 6
The answer is 6.4%
When converting a decimal to a percent two places to the right.
I hope this helps!
Answer: 135 minutes or 2 hours and 15 minutes
Step-by-step explanation:
4/18 = 30/ x
Solve for duh 'x'