Which of the following is the coefficient in the algebraic expression 8x + z2
1 answer:
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Answer:
Step-by-step explanation:
The rate of change of the function f(x) from point to point
can be calculated using formula
Given
From the graph of the function
So, the rate of change is
Answer:
f^-1(x)= 1/3+In(x)/3 In(2)
Step-by-step explanation:
Step-by-step explanation:
the error:
it is stated that
subtract (5x)/(x+7) from both sides
multiply both sides by x + 7
7(x+7) = 49x
7x + 49 = 49x
subtract 7x from both sides to isolate x and its coefficient
49 = 42x
thus, this is only true when 49 = 42x. in order for these two equations to be equal, they must <em>always </em>be true, so this is wrong
the solution:
we want to express 7/x as (something) / (x+7). to do this, we can multiply 7/x by 1.
anything divided by itself = 1. thus, if we multiply both the numerator and the denominator by something that turns x into (x+7), we can do what we want to do.
(x+7)/x * x turns x into (x+7), so we multiply both the numerator and denominator by (x+7)/x to get
substitute this for 7/x in our original problem