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
Answer:2
Step-by-step explanation:
Answer:
See explanation
Step-by-step explanation:
1. From the graph of absolute value function:
a. The domain is 
b. The range is 
c. The graph is increasing for all 
d. The graph is decreasing for all 
2. From the graph of quadratic function:
a. The domain is 
b. The range is ![y\in (-\infty,0]](https://tex.z-dn.net/?f=y%5Cin%20%28-%5Cinfty%2C0%5D)
c. The graph is increasing for all 
d. The graph is decreasing for all 
Answer:
A. 3
Step-by-step explanation:
Substitute
4x+2=x-4
Then solve
3x=-6
x=-2
Substitute answer into an equation to find y
y=-2-4
y=-6
So you solution is:
(-2,-6)