Answer:
He will take 60 seconds to move from one end of the sidewalk to other.
Step-by-step explanation:
Given:
A person on a moving sidewalk,
21 feet in 7 seconds
Then 180 feet
To Find:
Total time =?
Solution:
Speed:
Speed is defined as the rate of distance covered in per unit time.
It is given as
Substituting the given values we get
Now, With this speed if he walk 180 feet then the time is
Substituting Speed and Distance we get
He will take 60 seconds to move from one end of the sidewalk to other.
Answer:
Step-by-step explanation:
y=x²+6x+5
=(x²+6x+(6/2)²)-(6/2)²+5
=(x+3)²-9+5
=(x+3)²-4
The axis of symmetry is x+3=0
or x=-3
when x=-3,f(x)=-4
vertex is (-3,-4)
Domain :-∞<x<∞
or (-∞,∞)
Range:[-4,∞)
Answer:
4
Step-by-step explanation:
I know cuz Bob said so and so did billy
Answer: A) 50 Minutes
(0.35 * 50) + 40 = 57.5
(0.65 * 50) + 25 = 57.5
57.5 = 57.5
First, add the fractions because they already have a common denominator.
3 plus 1 equals 4. The fractions make 3/3 which equals 1. 4 plus 1 equals 5.
Your answer is 13.
Hope this helps!
:)
