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2 years ago

Multiply each binomial and find the coefficients.

Mathematics

1 answer:

Bas_tet [7]2 years ago

5 0

Answers:

Row one: 1 and 1

Row two: 1, 2, and 1

Row three: 1, 3, 3, and 1

Row four: 1, 4, 6, 4, and 1

=========================================

Explanation:

Each value can be found in Pascal's triangle. You can also use the nCr combination formula to get each value. The nCr formula is

$_n C _r = \frac{n!}{r!(n-r)!}$

The value of n represents the row number. The r value is the column number, so to speak, for each row.

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2 years ago

Find a single discount equivalent to two successive discount of 20% and 5%

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3 years ago

Find the value of x and y so that both proportions will be correct:

andrew11 [14]

The values of x and y are 0.2 and 0.4 respectively.

<em><u>Explanation</u></em>

The given proportions are.....

$x: 1\frac{2}{3}=y: 3\frac{1}{3}$ and $y:1.5=0.2:0.75$

From the second proportion, we will get....

$y:1.5=0.2:0.75\\ \\ \frac{y}{1.5}=\frac{0.2}{0.75} \\ \\ 0.75y=0.2*1.5\\ \\ 0.75y=0.3\\ \\ y=\frac{0.3}{0.75}=0.4$

Now, we will plug this $y=0.4$ into the first proportion. So we will get....

$x: 1\frac{2}{3}=y: 3\frac{1}{3}\\ \\ x: \frac{5}{3}=0.4:\frac{10}{3} \\ \\ \frac{x}{\frac{5}{3}}= \frac{0.4}{\frac{10}{3}}\\ \\ \frac{3x}{5}=\frac{1.2}{10}\\ \\ 30x=6\\ \\ x= \frac{6}{30}=0.2$

So, the values of x and y are 0.2 and 0.4 respectively.

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3 years ago

How many quarter hours are in 5 hours?

nikklg [1K]

There is a few ways to get the result.
Lets try this.
First calculate how many minutes are in the 5 hours.
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Now, knowing that quarter is 15min we can divide 300 by 15 to get the result, so
300:15=20 - its the result.

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3 years ago

Read 2 more answers

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kotykmax [81]

Answer:

1) 1/2

2) 1/13

3)1/169

Step-by-step explanation:

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2 years ago