Answer:
84in
Step-by-step explanation:
84in
Answer:
5
Step-by-step explanation:
the slope is the number behind the x in this type of equation
Answer:
C) 80 milliamperes
Step-by-step explanation:
The amount of current flowing through a circuit is directly proportional to the amount of voltage applied across the circuit. The relation between current(I) and voltage(V) can be expressed as:
Here, is the proportionality constant. It is given that, when voltage is 2 volts, 40 milliamperes( amperes) current flow through the circuit. Using these values we can find the value of proportionality constant. i.e.
Using this value, we can establish the relation between I and V as:
Now, we need to calculate value current (I) if voltage is equal to 4 volts. Substituting V = 4 in above equation, we get:
Thus, the value of current will be 80 milliamperes
Answer:
W value 56 ft
Step-by-step explanation:
The formula for the perimeter of a rectangle is
P = 2L + 2W
Here P = 156 ft = 2(22 ft) + 2W, or
78 ft = 22 ft + W
This yields the W value 56 ft
Given:
Your distance y (in meters) from the finish line x seconds after you begin your leg of a relay race is
Opponent's distance is
To find:
The distance you need to run to catch up with your opponent.
Solution:
We have,
...(i)
...(ii)
Subtract (ii) from (i), we get
Divide both sides by 0.3.
Put x=20 in (i).
They will meet at (20,20). It means at 20 meters from the finish line after 20 seconds from the beginning.
Put x=0 in (i), we get
It means, initially the total distance you and finish line is 100 meters.
You will catch your opponent 20 meter from the finish line. So,
Therefore, you need to run 80 meters to catch up with your opponent.