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Calculate: 5/2-5+2/2+5

Calculate: √5/2-√5+2/2+√5

2 months ago

Solution 1

Guest Guest #7157
2 months ago
-√5/2+√5+1
-√5/2+2√5/2+1
√5/2+1
(√5+2)/2

Solution 2

Guest Guest #7158
2 months ago
So,

\frac{ \sqrt{5} }{2} - \sqrt{5} + \frac{2}{2} +\sqrt{5}

\frac{1}{2}\sqrt{5} - \sqrt{5} + \frac{2}{2} +\sqrt{5}

First, we have to simplify the expression.

We can see that there is a negative square root of 5 and a positive square root of 5.  They cancel out.  In addition, we know that two-halves are equal to 1.

\frac{1}{2}\sqrt{5} + \frac{2}{2}

\frac{1}{2}\sqrt{5} + 1

Since the square root of 5 can be thought of as 5 to the one-half power, we should evaluate that first.

\sqrt{5}=2.23606797749978969640\ or\ approximately\ 2.236

Substitute 2.236 for the square root of 5.

\frac{1}{2}(2.236) + 1

Multiply.
1.118 + 1

Add.
2.118

So the expression is approximately equal to 2.118 (exactly 2.1180339887498948482045868343656).

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measure in the actual=measure in the map/scale
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Find the sum of the summation of 2 i minus 12, from i equals 7 to 16. 22 110 220 440
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Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

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You just need to use algebra to isolate/find n

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Solution 2
Hello there,
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I hope this helped, and if you have any more question please feel free to ask me.
Have a nice day!
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Hi there!

The answer is C.
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don't forget to rate and thank plz.

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