Answer:
-16
Step-by-step explanation:
0.44×10^-15
4.4×10^-16
Answer:

Step-by-step explanation:
All three triangles in the figure are similar. Therefore, we can set up the following proportion:

Cross-multiply to solve:
.
<span>They share a vertex and side, but do not overlap
Hope this helps</span>
Answer:
y = 2 / (r/3 - s/5)
Step-by-step explanation:
r/3 - 2/y = s/5
add 2/y to both sides
r/3 = s/5 + 2/y
Subtract s/5 from both sides
r/3 - s/5 = 2/y
multiply both sides by y
y(r/3 - s/5) = 2
Divide both sides by r/3 - s/5
y = 2 / (r/3 - s/5)
You could apply a clever Algebra trick to avoid using the quotient rule,


and apply power rule into chain rule from that point.
But this problem was likely designed to teach you about quotient rule so let's do it that way.
Let's start by "setting up" our quotient rule:

If this log notation is not intended to be natural log, then we'll have a little bit of extra work. Our change of base identity allows us to rewrite log base 10 in terms of the natural log,

so let's apply this to our problem,

Derivative of ln(x) gives us 1/x in each case,

Factor the 1/(x ln10) out of each term in the numerator,

and combine like-terms,

Lemme know if you're confused with any of the steps.