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Leni [432]
3 years ago
5

Rationalise the denominator.1/√5+√2​

Mathematics
2 answers:
Pani-rosa [81]3 years ago
3 0

Answer:

Exact Form:

  √5 + 5√2

__________

       5

Decimal Form:

1.86142715

…

Step-by-step explanation:

N/A

Romashka-Z-Leto [24]3 years ago
3 0

Step-by-step explanation:

\frac{1}{ \sqrt{5}  +  \sqrt{2} }  \\  =  \frac{1}{ \sqrt{5}  +  \sqrt{2} }  \times  \frac{\sqrt{5}   -   \sqrt{2} }{ \sqrt{5}   -   \sqrt{2} }  \\  \\  =  \frac{ \sqrt{5} -  \sqrt{2}  }{ {( \sqrt{5)} }^{2}  -  {( \sqrt{2)} }^{2} }  \\  \\  =  \frac{ \sqrt{5} -  \sqrt{2}  }{5  -  2 }  \\  \\ =  \frac{ \sqrt{5} -  \sqrt{2}  }{3}

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What is the measure of the angle formed by the minute hand and the hour hand of a clock when the clock shows 4:35? A. 72.5° B. 9
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A) Minute Hand:
in 1 hour (= 60 minute) the minute hand travels 360 °
So in each minute, the minute hand travels 360/60 = 6°
And in x minute it will travel x.(6°)

B) Hour Hand:
in 1 hour (= 60 minute) the hour hand travels 360/12 = 30°
So in each minute, the hour hand will travel 30°/60° = 0.5°
And in x minute it will travel x.(0.5°)

ANGLE AT 4:35?

At 4:00, angle = 4. 30 = 120°
After 35 minutes, the minute hand strops at 35.(6°) = 210°, but during this 35 minute, the hour hand traveled 35.(0.5) = 17.5°, on top of its 120°, that makes an angle of 137.5°

So at 4:35 the angle between the hour & minute hand = 210°-137.5° =72.5°

Answer A


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3 years ago
Which of the following scenarios demonstrates an exponential decay? A. A tennis tournament in which after each round, half the p
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Step-by-step explanation:

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3 years ago
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Which statement is true about the function f(x) = 7
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Answer:

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Step-by-step explanation:

Key to find if a function f(x) is even or odd is to replace the x with -x

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if the results comes out to be -f(x) then it is odd function

where as graphically even f(x) will be symmetric around the y-axis and odd f(x) will be symmetric around the origin.

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5 0
3 years ago
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Answer:

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