Answer:
π = Circumference/ Diameter
Step-by-step explanation:
Answer:
8/15
Step-by-step explanation:
Answer:
Option B is correct.
the value of discriminant is, -7
Step-by-step explanation:
Given the equation: ![x^2 + x +2 = 0](https://tex.z-dn.net/?f=x%5E2%20%2B%20x%20%2B2%20%3D%200)
To find the value of discriminant ![b^2-4ac](https://tex.z-dn.net/?f=b%5E2-4ac)
A quadratic equation is of the form
where a, b and c are coefficient of the equation.
On comparing with given equation we have;
a = 1 , b = 1 and c = 2
then;
Discriminant = ![b^2-4ac =(1)^2 -4(1)(2) =1 -8 = -7](https://tex.z-dn.net/?f=b%5E2-4ac%20%3D%281%29%5E2%20-4%281%29%282%29%20%3D1%20-8%20%3D%20-7)
Therefore, the value of discriminant is, -7
The formula is
time = (Worker 1 * Worker 2) / (Worker 1 + Worker 2)
time = (18 * 20) / (18 + 20)
time = 360 / 38
time =
<span>
<span>
<span>
9.4736842105
</span>
</span>
</span>
minutes
So, the answer is "a. 9.5 minutes".
Source
http://www.1728.org/work.htm
Always true because when you solve it out you end up with 7x-8<7x+13 and then you subtract the 7x from both sides and you get -8<13 and -8 is less than 13.