Answer:
Step-by-step explanation:
d + <u> </u> d
_
2
Answer:
75
Step-by-step explanation:
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Answer:
Please check the explanation.
Step-by-step explanation:
Given
f(x) = 3x + x³
Taking differentiate



solving






now solving




Thus, the expression becomes


Thus,
f'(x) = 3 + 3x²
Given that f'(x) = 15
substituting the value f'(x) = 15 in f'(x) = 3 + 3x²
f'(x) = 3 + 3x²
15 = 3 + 3x²
switch sides
3 + 3x² = 15
3x² = 15-3
3x² = 12
Divide both sides by 3
x² = 4



Thus, the value of x will be:

Answer:
3
Step-by-step explanation:
First you gotta take the equation and bring it to the following form:

The slope of the line is the coefficient of x, a.
In other words:

So, as we can see, the number infront of x is 3. That is to say that the slope of this line is equal to 3.
Answer:N
Step-by-step explanation: