Answer:
B. 32.154 in²
Step-by-step explanation:
A= 3.14 * r^2
A= 3.14 * 3.2^2
A= 32.154
Hi!
So do 91/7 = 13
which means Frances can do 13 oil changes in 1 day
To find how many he can do in 11 days, multiply 13 and 11
11*13 = 143
Frances can do 143 oil changes in 11 days.
Hope this helps!
Answer:
16 runner
Step-by-step explanation:
It is given that,
Each group will need to run a race that is 1/2 of a mile long. Each runner has to run 1/8 of a mile in the race.
Let there are x no of runners. ATQ,
So, there are 16 runner that are needed for each relay race group.
Answer:
43,872
Step-by-step explanation:
The growth of cell phone subscribers in Centerville can be modeled by an exponential function.
y = ab^x . . . . . where a = initial value, b = growth factor
The growth rate is given as 75% per year, so x will have units of years. It will be zero for the year 1985. The growth factor is ...
b = 1 + growth rate = 1 +0.75 = 1.75
Then the model is ...
y = 285·1.75^x
__
For x = 1994 -1985 = 9, the number of subscribers is modeled as ...
y = 285·1.75^9 ≈ 43,872
The model predicts 43,872 cell phone subscribers in 1994.
The solution to these linear equations is (4,-3)
So the x-value is 4
:)))
