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timofeeve [1]
3 years ago
7

HELP PLEASE!!! Thanks!

Mathematics
1 answer:
Irina18 [472]3 years ago
8 0

Answer:

2) \frac{\sqrt{77}}{11}

3) 5√2

Step-by-step explanation:

Simplest radical form of an expression is the expression in radical so that there are no more square roots, cube roots, 4th roots, etc left to find, after rationalising the denominator ( if needed ).

2. Here the given expressions,

\frac{\sqrt{7}}{\sqrt{11}}

For rationalising the denominator multiply both numerator and denominator by √11,

\frac{\sqrt{77}}{11}

3. given expression,

\sqrt{50}

=\sqrt{25\times 2}

=\sqrt{25}\times \sqrt{2}   (\because \sqrt{ab}=\sqrt{a}\sqrt{b})

=5\sqrt{2}

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Answer:

V = 4 volt

Step-by-step explanation:

Given: Electrical power (w) P = 0.5 watt and resistance R ( Ω ) R = 32 ohm

Voltage V = ? (volt)

Formula for calculating electrical power is:

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God with you!!!

5 0
3 years ago
Harry received a package for his birthday. The package weighed 350,000 centigrams. Select the conversions that are equivalent to
notsponge [240]

Given:

The package weighed 350,000 centigrams.

To find:

The conversions that are equivalent to 350,000 centigrams

Solution:

We know that,

1 centigrams (cg) = 0.000001 kilograms (kg)

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Using these conversions, we get

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350,000 centigrams = 350 dekagrams

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5 0
3 years ago
How many lines of symmetry does the letter S have?
cestrela7 [59]
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3 years ago
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vovikov84 [41]

Answer:

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let the present age of Susan be x years then Debbie is x+5 years

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x +2 = x+5+2/2

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So her new </span>checkbook balance is $286.86
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3 years ago
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