<h3>
Answer: ds/dt = 11</h3>
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Work Shown:
Before we can use derivatives, we need to find the value of s when (x,y) = (15,20)
s^2 = x^2+y^2
s^2 = 15^2+20^2
s^2 = 225+400
s^2 = 625
s = sqrt(625)
s = 25
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Now we can apply the derivative to both sides to get the following. Don't forget to use the chain rule.
s^2 = x^2 + y^2
d/dt[s^2] = d/dt[x^2 + y^2]
d/dt[s^2] = d/dt[x^2] + d/dt[y^2]
2s*ds/dt = 2x*dx/dt + 2y*dy/dt
2(25)*ds/dt = 2(15)*5 + 2(20)*(10)
50*ds/dt = 150 + 400
50*ds/dt = 550
ds/dt = 550/50
ds/dt = 11
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Side note: The information t = 40 is never used. It's just extra info.
You will make 4 sales if you are making a sale between 3 and five because 4 is whats in between 3 and 5. If your are to compute you will make a sale of average 4 because the average of 3 and 4 is 5. Computed as 3+5/2=4.
Answer:
Profit = $6
Step-by-step explanation:
The box of apple that the man bought contained 100 apples.
These 100 apples were gotten for $44
Then he sold the 100 apples for $0.5 each.
So sales price = 0.5 * 100 = $50
To know if he made profit or loss.
Sales price - cost price
$50 - $44
= $6
This man made profit of $6 from the sales of the apples from the calculation above.
If 11/11 were to be equal to 1, then 22/11 will be equal to 2.
Answer:
-4
Step-by-step explanation:
