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3 years ago

6

Why is ln natural logarithm?

2 answers:

klemol [59]3 years ago

6 0

I think its because log e is ln so ln is a natural logarithm.

____ [38]3 years ago

5 0

Logarithms with a base of "e" which is approximately equal to 2.71828, are called natural logarithms. Natural logarithms are represented by the abbreviation ln.

For example, ln 20 means that natural log of 20. Since the base of a natural log is e or 2.71828, the value of the natural log of 20 is approximately equal to 3 because 2.71828 to the 3rd power is approximately equal to 20.

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Answers for the 2 boxes please:)

masha68 [24]

Answer:

(5,-5)

Step-by-step explanation:

<u>Eliminate</u><u> </u><u>y-term</u>

$(2x + 5x) + ( - 3y + 3y) = 25 + 10 \\ 7x = 35 \\ x = \frac{35}{7} \\ x = 5$

We can eliminate x-term but for this system of equations, eliminating y-term is faster.

<u>Substitute</u><u> </u><u>x</u><u> </u><u>=</u><u> </u><u>5</u><u> </u><u>in</u><u> </u><u>any</u><u> </u><u>given</u><u> </u><u>equations</u><u>.</u>

I will choose to substitute in the first equation.

$2x - 3y = 25 \\ 2(5) - 3y = 25 \\ 10 - 3y = 25 \\ 10 - 25 = 3y \\ - 1 5 = 3y \\ 3y = - 15 \\ y = - 5$

<u>Answer</u><u> </u><u>Check</u>

Substitute both x-value and y-value in any given equations

$2x - 3y = 25 \\ 2(5) - 3( - 5) = 25 \\ 10 + 15 = 25 \\ 25 = 25$

The equation is true. (<em>It</em><em> </em><em>is</em><em> </em><em>better</em><em> </em><em>to</em><em> </em><em>check</em><em> </em><em>both</em><em> </em><em>the</em><em> </em><em>answer</em><em> </em><em>for</em><em> </em><em>both</em><em> </em>equation.)

Thus the answer is (5,-5)

6 0

3 years ago

Is this a function?

Brums [2.3K]

Answer:

Yes

Step-by-step explanation:

It is a function since each x-coordinate is used only once. No two x-coordinates are equal. That makes it a function.

Answer: Yes

6 0

2 years ago

At the beginning of the day the stock market goes up 30 1/4

Evgen [1.6K]

Answer:

-60 1/4 or -60.25

Step-by-step explanation:

you would subtract 30 1/4 by 90 1/2 to get the difference from the beginning to the end of the day

5 0

3 years ago

Read 2 more answers

4a + 5b + 11b + 3a + 9 +21<br> 7.) What are the terms in the algebraic expression?

storchak [24]

Answer:

7a+16b+30

Step-by-step explanation:

I think maybe

4 0

3 years ago

Which statement is true about the graphs of the two lines y = -4/5x + 2 and y = -5/4x - 1/2?

Alex777 [14]

Answer:

The correct answer is 2! Because the lines start off at the top and then cross.

❤

4 0

3 years ago

Read 2 more answers