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2 years ago

A 24-f0ot ladder rests against a house near a second story window 20 feet from the ground. Assume that the ladder

Mathematics

1 answer:

Marianna [84]2 years ago

3 0

Answer:

Step-by-step explanation:

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Pls help middle school math and picture question

Ira Lisetskai [31]

Distance is 10 united

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2 years ago

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Solve: In 2x + In 2 = 0 DONE

pychu [463]

Answer:

$x=\frac{1}{4}$

Step-by-step explanation:

We can use some logarithmic rules to solve this easily.

Note: Ln means $Log_e$

Now, lets start with the equation:

$ln(2x) + ln(2) = 0\\ln(2x) = -ln(2)$

Writing left side with logarithmic base e, we have:

$Log_{e}(2x) = -ln(2)$

We can now use the property shown below to make this into exponential form:

$Log_{a}b=x\\means\\a^x=b$

So, we write:

$Log_{e}(2x) = -ln(2)\\e^{-ln(2)}=2x$

We recognize another property of exponentials:

$a^{bc}=(a^{b})^{c}$

So, we write:

$e^{-ln(2)}=2x\\(e^{ln(2)})^{-1}=2x$

Also, another property of natural logarithms is:

$e^{(ln(a))}=a$

Now, we simplify:

$(e^{ln(2)})^{-1}=2x\\(2)^{-1}=2x\\\frac{1}{2}=2x\\x=\frac{\frac{1}{2}}{2}\\x=\frac{1}{4}$

This is the answer.

7 0

2 years ago

Plz show work 3(10-x)=21

Contact [7]

Answer:

x = 3

Step-by-step explanation:

3(10-x)=21

30-3x=21

-30 -30

-3x=-9

x=3

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2 years ago

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4x - 2y = 5 y= 2x + 10

Helga [31]

Answer:

There is no solution

Step-by-step explanation:

4x - 2y = 5 --> 4x - 2(2x + 10) = 5

4x - 4x - 20 = 5

4x - 4x -25 = 0

Final answer is -25 = 0 and so therefor it is no solution

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2 years ago

What is the missing number in the number sentence?

MatroZZZ [7]

Answer:

the missing number is 47............

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