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3 years ago

7

Piramida triunghiulara regulata, muchia laterala de 20 cm si apotema de 16 cm. Aflați aria totală!!! vă rooog, imi trebuie azi!!

!!

1 answer:

matrenka [14]3 years ago

6 0

20-16 get four then u woukd have to subtract it ant the answer is 4

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Mark simplified 3/5 divided by 5/8 his work is shown below.Identify where he made his error.

zheka24 [161]

Answer:

step two

Step-by-step explanation:

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3 years ago

40% of the children in a sports club play badminton. 25% of the children who play badminton also play squash. There are 11 child

Keith_Richards [23]

Answer:

There are 110 children total in the sports club

Step-by-step explanation:

To get this answer, its actually easier than it seems. You might need a calculator however.

First you start with the 11 children who play both badminton and squash, then, you divide that by 0.25 (25%) to get 44.

Next you take 44 and divide it by 0.4 (40%) to get 110.

And there you go! If you want to make sure you got it right simply start with 110 and multiply it by 0.4 then multiply the number/decimal you get by 0.25. You should get 11 to confirm your answer :)

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3 years ago

018 10.0 points

Elina [12.6K]

Answer:

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Step-by-step explanation:

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3 years ago

I need help ASAP im very confused on the box part I put the two on the top but then what else?

r-ruslan [8.4K]

Answer is in the file below

tinyurl.com/wpazsebu

8 0

2 years ago

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John is going on a trip and the country he is traveling to uses the Celsius scale. He is curious about converting Celsius temper

Setler79 [48]

Answer:

$f(x)=\dfrac{9}{5}x+32$ converts Celsius to Fahrenheit.

$g(x)=\dfrac{5(x-32)}{9}$ converts Fahrenheit to Celsius.

Step-by-step explanation:

Write given data in the table

$\begin{array}{cc}x&f(x)\\^{\circ}\text{C}&^{\circ}\text{F}\\20&68\\30&86\end{array}$

Let the expression for the function be

$f(x)=ax+b$

Note, that this equation is linear equation and it is well-known fact that the Celsius to Fahrenheit dependence is linear.

Substitute corresponding values into this expression:

$68=20a+b\\ \\86=30a+b$

Subtract these two equations:

$86-68=30a-20a\\ \\10a=18\\ \\a=\dfrac{9}{5}$

Substitute it into the first equation:

$68=20\cdot \dfrac{9}{5}+b\Rightarrow b=68-36=32$

So,

$f(x)=\dfrac{9}{5}x+32$

This is the function which converts Celsius to Fahrenheit.

And function

$g(x)=\dfrac{5(x-32)}{9}$ converts Fahrenheit to Celsius.

4 0

2 years ago

Read 2 more answers