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3 years ago

9.812 rounded to the nearest hundredth

Mathematics

1 answer:

liubo4ka [24]3 years ago

5 0

Answer:

9.81

Step-by-step explanation:

1/100 = 0.01

Therefore the answer is 9.81 as 2 will be rounded down.

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Which two expressions are equivalent?

MariettaO [177]

Answer:

First option

Step-by-step explanation:

The result of first expression:

7(6+z) multiply 7 with inside the parenthesis

7(6+z) = 42 + 7z

the result of second expression:

since we need to do multiplying first,

7*6 = 42 and 7*z = 7z

then we add them

42 + 7z this is the same result we found for the first equation

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2 years ago

The area of a circular sun spot is growing at a rate of 1,200 km2/s.

Tpy6a [65]

A)

$\bf \textit{area of a circle}\\\\
A=\pi r^2
\\\\\\
\cfrac{dA}{dt}=\pi \cdot 2r\cfrac{dr}{dt}\implies \cfrac{dA}{dt}=2\pi r\cfrac{dr}{dt}\implies \cfrac{\frac{dA}{dt}}{2\pi r}=\cfrac{dr}{dt}\\\\
-----------------------------\\\\
\left. \cfrac{dr}{dt} \right|_{r=3000}\implies \cfrac{1200}{2\pi \cdot 3000}=\cfrac{dr}{dt}\\\\$

B)

$\bf A=\pi r^2\qquad A=490000\implies 490000=\pi r^2\implies \sqrt{\cfrac{490000}{\pi }}=r
\\\\\\
\left. \cfrac{dr}{dt} \right|_{r=\sqrt{\frac{490000}{\pi }}}\implies \cfrac{1200}{2\pi \cdot \sqrt{\frac{490000}{\pi }}}=\cfrac{dr}{dt}
$

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3 years ago

There are 10 fruits in a basket and 5 of them are apples. Write the ratio in simplest form.

klasskru [66]

Answer:

10:5= 2:1

Step-by-step explanation:

Hope this helped!! Give brainliest..

3 0

3 years ago

Read 2 more answers

What is the reduced and simplified value of the expression given below?

blsea [12.9K]

Answer:

$\frac{ \sqrt{16} \times \sqrt{25} } { \sqrt{4} } = \frac{4 \times 5}{2} \\ = 20 \div 2 \\ = 10$

$where \: \sqrt{16} = 4 \\ \sqrt{25} = 5 \\ \sqrt{4 } = 2$

Step-by-step explanation:

Answer is given above with explanations .

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

4 0

3 years ago

A password is 4 characters long and must consist of 3 letters and one number. if letters cannot be repeated and the password mus

sdas [7]

The possibility of selecting a 4 characters long password consisting of 3 letters and one number if letters cannot be repeated and the password must end with a number is 156000

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more number and variables.

The possibility of selecting the password = 26 * 25 * 24 * 10 = 156000

The possibility of selecting a 4 characters long password consisting of 3 letters and one number if letters cannot be repeated and the password must end with a number is 156000

Find out more on equation at: brainly.com/question/2972832

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7 0

2 years ago