D/60 + D/50 = 2D/55 - 1/2
find common denominator ( 3300)
3300/60 = 55
3300/50 = 66
3300/55=60
so then you get 55D +66D= 60(2D)-1650
121D=120D-1650
D=1650 miles
check
1650/60 =27.5, 1650/50 = 33, 27.5 + 33 = 60.5 hours total
1650/55 = 30, 30 x 2 = 60
60.5-60 = 0.5 longer
so distance = 1650 miles
Answer:
7 c;
Step-by-step explanation:
Answer:
B1: -9, -3, and 10
B2: 5
Step-by-step explanation:
mark brainliest
Answer:
D. The range of the function is all real numbers greater than or equal to 0.
Step-by-step explanation:
The graph of the function
is shown in attached diagram.
1. The domain of the function is the set of all possible values for input (for x). Hence, the domain of this function is
![x\in (-\infty,0]](https://tex.z-dn.net/?f=x%5Cin%20%28-%5Cinfty%2C0%5D)
2. The range of the function is the set of all possible values for output (for y), so the range of this function is

As you can see, only option D is true - The range of the function is all real numbers greater than or equal to 0.