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3 years ago

What is the value of n?

Mathematics

1 answer:

qaws [65]3 years ago

4 0

Answer:

your answer will be<u> A.85°</u>

Step-by-step explanation:

hope it helps you

have a great day!!!

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Which is the first step in simplifying the expression?

Elenna [48]

$\dfrac{3}{2 + \sqrt{2} }$

To rationalise the denominator, this is a standard step:
$= \dfrac{3}{2 + \sqrt{2} } \times \dfrac{2 - \sqrt{2}}{2 - \sqrt{2}}$

Answer: Option A

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Let me continue to complete the question, though it is not ask for

$= \dfrac{3(2 - \sqrt{2})}{(2 + \sqrt{2)}(2 - \sqrt{2}) }$

$= \dfrac{3(2 - \sqrt{2})}{4 - 2 }$

$= \dfrac{6 - 2\sqrt{2}}{2 }$

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3 years ago

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What is Negative three-fourths + 2 and three-fourths

KATRIN_1 [288]

Answer: -0.25

Explanation:

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3 years ago

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Identify the minimum or maximum value and the domain and range of the function

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Y = 2 ( X - 3 ) ^ 2 - 4 =-4

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2 years ago

Work out 3/5 of 900

Mars2501 [29]

Answer:

540

Step-by-step explanation:

1. We assume, that the number 900 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 900 is 100%, so we can write it down as 900=100%.

4. We know, that x is 3.5% of the output value, so we can write it down as x=3.5%.

5. Now we have two simple equations:

1) 900=100%

2) x=3.5%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

900/x=100%/3.5%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 3.5% of 900

900/x=100/3.5

(900/x)*x=(100/3.5)*x - we multiply both sides of the equation by x

900=28.571428571429*x - we divide both sides of the equation by (28.571428571429) to get x

900/28.571428571429=x

31.5=x

x=31.5

now we have:

3.5% of 900=31.5

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3 years ago

Write an inequality to describe the possible values of x.

Papessa [141]

Answer:

Step-by-step explanation:

x<9+7, and x+7>9

solve

x<16

x>2

2<x<16

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3 years ago