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sp2606 [1]
3 years ago
15

What is the 9th multiple of 15

Mathematics
1 answer:
MArishka [77]3 years ago
5 0
135 because 
15x1=15 15x7=105
15x2=30 15x8=120
15x3=45 15x9=135
15x4=60 15x10=150
15x5=75 15x11=165
15x6=90 15x12=190

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Difference between standard deviation and mean deviation​
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Complete the factorization of 4x2 – 9.
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Which expression is equivalent to sqrt8x^7y^8? assume x&gt;0
Ilia_Sergeevich [38]

Answer:

\sqrt{8x^7y^8= 2x^3y^4 * \sqrt{2x}

Step-by-step explanation:

Given

\sqrt{8x^7y^8

Required

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\sqrt{8x^7y^8

Separate each factor with multiplication sign

\sqrt{8*x^7*y^8

Express 8 as 4 * 2 and x^7 as x^6 * x

\sqrt{4 * 2 *x^6 * x*y^8

Split each factor

\sqrt{4} * \sqrt{2} *\sqrt{x^6} * \sqrt{x}*\sqrt{y^8}

Evaluate \sqrt4

2 * \sqrt{2} *\sqrt{x^6} * \sqrt{x}*\sqrt{y^8}

Apply law of indices:

2 * \sqrt{2} * x^{6*\frac{1}{2}} * \sqrt{x} * y^{8*\frac{1}{2}}

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Reorder

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2x^3y^4 * \sqrt{2*x}

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Hence:

\sqrt{8x^7y^8= 2x^3y^4 * \sqrt{2x}

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3 years ago
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