5.
3x - 1 = x + 9
Subtract x on both sides
2x - 1 = 9
Add one on both sides.
2x = 10
Divide by 2 to get the x.
x = 5
Hope this helps!
Answer:
Negative line
Step-by-step explanation:
Going up is positive (think in going uphill)
Going down is negative
Answer:
90
Step-by-step explanation:
There are 10 people who can be picked for the first position, which leaves 9 people who can be picked for the second position.
10 × 9 = 90
You can also use permutations.
₁₀P₂ = 90
The derivatives for this problem are given as follows:
a) 
b)
.
<h3>What is the derivative of the sum?</h3>
The derivative of the <u>sum is the sum of the derivatives</u>.
In this problem, the function is:

Using a derivative table for the derivatives of the cosine and the ln, the derivative of the function is:


What is the product rule?
The derivative of the product is given as follows:

In this problem, we have that:
.
.
Hence the derivative is:
.
More can be learned about derivatives at brainly.com/question/2256078
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