3 years ago

How do I find x and y in this equation

Mathematics

1 answer:

zalisa [80]3 years ago

7 0

X= 8 radical 5 and y= 8 radical 10

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Which one is correct? Please hurry...the audio is just reading the question.

Darina [25.2K]

Answer:

n = 18

Step-by-step explanation:

18/27 = 12/n

18 * n = 12 * 27

18n = 324

n = 324/18

n = 18

7 0

3 years ago

What is the exact value of x?

Nadya [2.5K]

Exact value of x will be 8 x sin(60)

Exact value of sin 60 = √3/2

So √3/2 x 8= 8 √3/2

Can be simplified to 4 √3

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2 years ago

Express 78 billion in scientific notation

ryzh [129]

Answer:

$7.8 * 10^{10}$ is scientific notation of 78 billion

Step-by-step explanation:

For scientific notation , follow the following notation:

$a * 10^{b}$ -------->(equation 1)

Let, $a^{'} = 78 billion$

$a^{'} = 78000000000$

$a^{'} = 78000000000.0$

In standard form

$a = 7.8000000000$

$a = 7.8$

As decimal point move 10 places from right to left, therefore

b = 10

Put the value of 'a' and 'b' in (equation 1)

$7.8 * 10^{10}$ is scientific notation of 78 billion

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3 years ago

A group of 5 friends ate lunch at a restaurant. The bill came to $42 and the friends agreed to split it equally. Which expressio

Gnom [1K]

Answer:

c would be the right and its the best answer

3 0

2 years ago

The new number, 550, is 200 more than the original number. What is the approximate percent change?a The percent change is 33%. b

Svetradugi [14.3K]

B The percentage change is 55%

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3 years ago

Read 2 more answers