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3 years ago

What is the answer for 2 (2s-1)+2

Mathematics

1 answer:

Harrizon [31]3 years ago

4 0

Answer:

Add

−

and

Step-by-step explanation:

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What 2 numbers add up to 2 and multiply to -24?

Alinara [238K]

Answer:

6 and - 4

Step-by-step explanation:

Adding up to 2

$6 + ( - 4) = 6 - 4 \\ 6 - 4 = 2$

Multiply to -24

$6 \times ( - 4) = - 24$

7 0

3 years ago

Triangle Proportions pls help find ? ive been trying for 20 mins

Pachacha [2.7K]

Let missing side be x

$\\ \sf\longmapsto \dfrac{2}{5}=\dfrac{x}{10}$

Now

$\\ \sf\longmapsto 5x=20$

$\\ \sf\longmapsto x=\dfrac{20}{5}$

$\\ \sf\longmapsto x=4$

8 0

2 years ago

Read 2 more answers

A curious patterns occurs in a group of people who all shake hands with one another. It turns out that you can predict the numbe

ycow [4]

Missing part of the question

Determine the number of handshakes, i, that will occur for each number of people, n, in a particular room. (people)

Answer:

$S_n = \frac{n}{2}(n - 1)$

Step-by-step explanation:

Given

For 5 people

$\begin{array}{cc}{People} & {Handshakes} & {5} & {4} & {4} & {3} & {3} & {2} & {2} & {1} & {1} & {0} &{Total} & {10} \ \end{array}$

Using the given instance of 5 people, the number of handshakes can be represented as:

$(n - 1) + (n - 2) + (n - 3) + ........ + 3 + 2 + 1 + 0$

The above sequence is an arithmetic sequence and the total number of handshakes is the sum of n terms of the sequence.

$S_n = \frac{n}{2}{(T_1 + T_n})$

Where

$T_1 = n - 1$ --- The first term

$T_n = 0$ --- The last term

So:

$S_n = \frac{n}{2}(n - 1 + 0)$

$S_n = \frac{n}{2}(n - 1)$

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2 years ago

Which list shows the numbers in order from least to greatest?

nata0808 [166]

Answer: second one (B) - 2.045, 2.43, 259

Step-by-step explanation: 2.045 is the lowest value due to the 0 in the hundredths place. 2.43 has a lower value than 259, it being a decimal.

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3 years ago

Please answer tomorrow is my exam please

Illusion [34]

Answer:

i dont know sorry.

Step-by-step explanation:

Do it yourself ;)

4 0

3 years ago