Answer:
The wide of the city is 10.7km
Step-by-step explanation:
To solve this we first have to know the formula to calculate the area of a square
a = area = 115 km²
s = side
a = s * s
now we replace with the known values
115 km² = s * s
115 km² = s²
√(115 km²) = s
10.724km = s
Round to the nearest tenth
s = 10.724km = 10.7km
The wide of the city is 10.7km
<h2>
Answer:</h2>
is 3 ohms
<h2>
Step-by-step explanation:</h2>
In a circuit containing two resistors
and
connected together in parallel, the total resistance
is given by;
---------(i)
<em>Make </em>
<em> subject of the formula;</em>
=>
=> ![\frac{1}{R_2} = \frac{R_1 - R_T}{R_TR_1}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BR_2%7D%20%3D%20%5Cfrac%7BR_1%20-%20R_T%7D%7BR_TR_1%7D)
=>
---------------(ii)
From the question,
= 6Ω
= 2Ω
Substitute these values into equation (ii) as follows;
=> ![{R_2} = \frac{2*6}{6 - 2}](https://tex.z-dn.net/?f=%7BR_2%7D%20%3D%20%5Cfrac%7B2%2A6%7D%7B6%20-%202%7D)
![{R_2} = \frac{12}{4}](https://tex.z-dn.net/?f=%7BR_2%7D%20%3D%20%5Cfrac%7B12%7D%7B4%7D)
= 3Ω
Therefore, the value of
= 3 ohms or
= 3Ω
Answer:
Carla has been running 7 miles each day for 13 days.
Step-by-step explanation:
Carla ran 3 miles on her first day, 5 miles on her second day and then 7 miles each day onward.
Let the number of days she ran 7 miles each day = x
Total distance run by Carla = 3 + 5 + 7(x)
= 8 + 7x
If her log book shows that she has run total distance = 99 miles
Equation representing her total run will be,
8 + 7x = 99
7x = 99 - 8
7x = 91
x = ![\frac{91}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B91%7D%7B7%7D)
x = 13 days
Therefore, Carla has been running 7 miles each day for 13 days.
I'm pretty sure the answer is -35 ......... I hope it helps