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liraira [26]
3 years ago
12

which of the following expressions is the definition of the derivative of f(x)=ln(x) at the point (5,ln5)

Mathematics
1 answer:
Doss [256]3 years ago
8 0
The definition of the derivative is
\frac{f(x + h) - f(x)}{h}
as h goes to 0. So since the f is ln(x)

\frac{ln(x+h)-ln(x)}{h}

Since it is evaluated at 5 (the point 5, ln5), it is

\frac{ln(5+h)-ln(5)}{h}
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Annie’s change purse contained 5 quarters 8 dimes and 8 nickels if Annie chose 2 coin randomly without replacing them in her pur
Bogdan [553]
<h3>Answer:</h3>

2/15

<h3>Explanation:</h3>

There are 8C2 = 28 ways to choose 2 dimes from the 8 dimes in Annie's purse. There are 21C2 = 210 ways to choose 2 coins from the 21 coins in Annie's purse.

Of the 210 ways to choose 2 coins, 28 of the choices will result in 2 dimes being chosen. The probability of choosing 2 dimes is 28/210 = 2/15.

_____

<em>Comment on nCk</em>

The number of ways to choose k objects from n, when order does not matter, is ...

... n!/(k!(n -k)!)

For the computations above, we have ...

... 8C2 = 8·7/(2·1) = 28

... 21C2 = 21·20/(2·1) = 210

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3 years ago
Question 3 of 10
andreyandreev [35.5K]
The answer should be 9 if I’m not mistaken
6 0
3 years ago
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What is the percent of change from 4 to 5?
enot [183]

Answer:

The formula for calculating the percent change in a value between two points in time is:

p

=

N

−

O

O

⋅

100

Where:

p

is the percent change - what we are solving for in this problem.

N

is the New Value - 5 in this problem.

O

is the Old Value - 4 in this problem.

Substituting and solving for

p

gives:

p

=

5

−

4

4

⋅

100

p

=

1

4

⋅

100

p

=

100

4

p

=

25

There was a 25% increase from 4 to 5.

Step-by-step explanation:

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3 years ago
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Divide, and enter the exact quotient.<br> 22,500 ÷ 500 =
Solnce55 [7]

Answer:

45

Step-by-step explanation: 45 x 500 = 22,500 meaning 22,500 ÷ 500 = 45

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3 years ago
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