level after I day was 5380 bacteria per cubic centimeter.
Answer: the function N(t) to estimate the level of contamination in the lake is:
N(t) = -1110 ln(t) - 230t + 1110 ln(I) + 230I + 5380
Step-by-step explanation: ∫ dN/dt dt = ∫ (-1110/t² -230) dt
N(t) = -1110 ln(t) - 230t + C
N(I) = -1110 ln(I) - 230I + C = 5380
C = 1110 ln(I) + 230I + 5380
g(x)=f(x)+n A horizontal shift of f , n units left
g(x)=f(x)- n A vertical shift of f, n units up
g(x)=f(x+n) A vertical shift of f, n units down
g(x)=f(x-n) A horizontal shift of f , n units right
Step-by-step explanation:
Transformations of graphs are fairly simple. Start with a parent function, or g(x) = f(x).
To move the graph UP or DOWN, add that number on the outside of the parenthesis with x: g(x) = f(x) + n is up, g(x) = f(x) - n is down.
To move the graph RIGHT you must SUBTRACT from inside the parenthesis. g(x) = f(x - n)
To move the graph to the LEFT you must ADD from inside the parenthesis . g(x) = f(x + n)
There are 1.3 miles in 2,200 yards.
It is the conversion of one unit to another unit with its standard conversion.
Examples:
1 hour = 60 minutes
1 minute = 60 seconds
1 km = 1000 m
We have,
2,200 yards ____(1)
1 mile = 1760 yards _____(2)
Now,
From (1) and (2),
1 mile = 1760 yards
Multiply 2,200/1760 on both sides.
2,200/1760 x 1 mile = 2,200/1760 x 1760 yards
1.25 miles = 2,200 yards
Rounding to the nearest tenths.
1.3 miles = 2,200 yards
Thus,
There are 1.3 miles in 2,200 yards.
Learn more about unitconversion here:
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Answer:
1.25 mi
Step-by-step explanation:
First, we want to convert a yard into feet; recall 1 yard = 3 feet.
Then we want to divide that by the number of feet in a mile 1 mile = 5280feet.
So 2200*3 =6600, then divide by 5280
6600/5280 = 1.25 mi
2200 yard is 1.25 miles
Answer:
x = 67.2
Step-by-step explanation:
7.5/12 = 4.2/x
First, divide 7.5 by 12.
0.625 = 42/x
Next, multiply both sides by x
0.625x = 42
Next, divide by 0.625
x = 67.2
There's your answer!
Answer:
Step-by-step explanation: