Answer:
C = 306 +1.3x
Step-by-step explanation:
In 1950 the average atmospheric concentration of carbon dioxide was 306 parts per million with an estimated increase of 1.3 parts per million every single year. Therefore we can use these numbers to create the following mathematical model.
C = 306 +1.3x
This model multiplies the number of years after 1950 (x) by the estimated carbon dioxide increase per year in parts per million, and finally adds the initial atmospheric concentration of carbon dioxide from 1950 to calculate the current atmospheric concentration of carbon dioxide
Answer:
( x - 3 )( x + 3 ) ( x - 4 )( x + 4)
Step-by-step explanation:
( x^2 - 9 ) ( x^2 - 16 )
( x - 3 )( x + 3 ) ( x - 4 )( x + 4)
Hopefully this helps!
Brainliest please?
7 because 4+2=6 and 1/2+1/2=1 so 6+1=7
The solution to the given fraction 7/11 = x/9 to the nearest tenth is 5.7
<h3>Fraction</h3>
7/11 = x/9
7 × 9 = 11 × x
63 = 11x
x = 63/11
x = 5.72727272727272
Approximately,
x = 5.7
Learn more about fraction:
brainly.com/question/11562149
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Answer:
9.1 = a+4
Step-by-step explanation:
The right side has two different values, variable <em>a,</em> constant 4.
The left side has the constant 9.1.
If both sides are equal, then
a + 4 should equal 9.1