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3 years ago

A third-class lever increases the distance a load can be moved. True False

Mathematics

1 answer:

bonufazy [111]3 years ago

8 0

The answer is false :)

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Am I right if not can you please correct me??

Anna11 [10]

Answer:

Step-by-step explanation:

Just a tiny mistake.

You forgot the minus symbol in the white boxes, and also, you have to add them, not multiply. So you have

3x + 25 = 5x - 20

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3 years ago

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What is the approximate estimation for 29.942 + 13.433

Nana76 [90]

Answer:

the answer would be it is approximately 43.85

(did addition)

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3 years ago

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Can anyone help me with this

ANTONII [103]

Answer:

Sure, what do you need

Step-by-step explanation:

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3 years ago

Find the equation of an exponential function in the form y = ab^x, given the points (0, 3) and (2, 108/25). Please simplify your

lilavasa [31]

We have the equation:

$y=a\cdot b^x$

We know two points and we will use them to calculate the parameters a and b.

The point (0,3) will let us know a, as b^0=1.

$\begin{gathered} y=a\cdot b^x \\ 3=a\cdot b^0=a \\ a=3 \end{gathered}$

Now, we use the point (2, 108/25) to calcualte b:

$\begin{gathered} y=3\cdot b^x \\ \frac{108}{25}=3\cdot b^2 \\ 3\cdot b^2=\frac{108}{25} \\ b^2=\frac{108}{25\cdot3}=\frac{108}{3}\cdot\frac{1}{25}=\frac{36}{25} \\ b=\sqrt[]{\frac{36}{25}} \\ b=\frac{\sqrt[]{36}}{\sqrt[]{25}} \\ b=\frac{6}{5} \end{gathered}$

Then, we can write the equation as:

$y=3\cdot(\frac{6}{5})^x$

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1 year ago

A culture is grown with a population of 45 million cells. The cell population is found to double every hour. What will the popul

Alexandra [31]

45 million * $2^{4}$ = 45million * 16 = 720million

Or you can use
$y=Ae^{kt}$
A is equal to 45 million
To find the rate, k, we can plug in:
$90million=45million*e^{k*1}
$
$2=e^{k}$
$k=ln(2)$
$y=4.5*10^{7}*e^{t *ln2}$
Knowing that t = 4
$y = 4.5*10^{7}*e^{ln(2)*4}
$
$y = 720 million$

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3 years ago

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