4 years ago

Simplify 4(a−b)+6b PLZ

Mathematics

1 answer:

yaroslaw [1]4 years ago

7 0

Expand

4a - 4b + 6b

Collect like terms

4a + (-4b + 6b)

Simplify

4a + 2b

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90 POINTS PLEASE HELP

11111nata11111 [884]

$sin\alpha = - 0.8$

Step-by-step explanation:

We have , $cos\alpha = \frac{3}{5}$ , where $\alpha$ is located in IV quadrant! Let's find out value of $sin\alpha$ :

$sin\alpha = \sqrt{1-(cos\alpha )^2$

⇒ $sin\alpha = \sqrt{1-(cos\alpha )^2$

⇒ $sin\alpha = \sqrt{1-(\frac{3}{5} )^2$

⇒ $sin\alpha = \sqrt{1-(\frac{9}{25} )$

⇒ $sin\alpha = \sqrt{(\frac{25-9}{25} )$

⇒ $sin\alpha = \sqrt{(\frac{16}{25} )$

⇒ $sin\alpha = \pm {(\frac{4}{5} )$

Value of $sin\alpha$ is dependent on which quadrant it is . Since, in question it's given that $\alpha$ is located in IV quadrant , So $sin\alpha$ is negative i.e.

⇒ $sin\alpha = - {(\frac{4}{5} )$

⇒ $sin\alpha = - 0.8$

Therefore, $sin\alpha = - 0.8$ .

4 0

3 years ago

Read 2 more answers

Minimize C = 6x + 3y Constraints: 4x + 3y > 24 4x + y = 16 6 x = 0, y > 0

vlabodo [156]

Answer:xy6

Step-by-step explanation:

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3 years ago

3x(2x-1)-(2x+3)(2x+3)

Alexxx [7]

The answer is negative 2x squared minus 3x

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3 years ago

Jennifer bought 5 meters of ribbon. She gave 2 meters of ribbon to her sister. Jennifer will use some or all of the remaining ri

Sergeu [11.5K]

She has = 5- 2 = 3

3 >= y * 0.55 > 0.55

5 > y > 1 (truncate in case of count)

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3 years ago

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Leya [2.2K]

Answer:

1. is 25%

Step-by-step explanation:

3.00 - 0.6 = 2.4

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3 years ago