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4 years ago

Use radical notation to rewrite each expression and simplify 9 3/2

Mathematics

1 answer:

scoundrel [369]4 years ago

7 0

Answer:

$9^{\frac{3}{2}}=\sqrt{9^3}=27$

Step-by-step explanation:

The fractional exponent m/n is often translated to radical form as ...

$x^{\frac{m}{n}}=\sqrt[n]{x^m}$

In this case, I find it easier to evaluate as ...

$x^{\frac{m}{n}}=(\sqrt[n]{x})^m=\boxed{(\sqrt{9})^3=3^3=27}$

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Can someone please help me on this

9966 [12]

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Regards,
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3 years ago

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balu736 [363]

Ps: just starting on algebra, so might not be right.

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Interval Notation:

(−2,0)∪(5,∞)

Set-Builder Notation:

{x|−2<x<0,x>5}

Solve for x

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3 years ago

Surface Area of a sphere, A grapefruit with C = 14cm.

9966 [12]

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4 years ago

Question 13.<br> what is 23 to the third power times 4 minus 8 plus 89 times 4 to the 5th power =?

UNO [17]

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4 years ago

Permutations vs combinations(one step):

Bogdan [553]

Answer:

the expression is: $^{15}P_3=\frac{15!}{(15-3)!}$

and 2730 different ways are possible.

Step-by-step explanation:

In the given question we have to choose a president, vice

president, and secretary.

Permutations are used when order is important so, as in the given question order is required. We would use permutations

The formula used is: $^nP_r=\frac{n!}{(n-r)!}$ where:

n=total number of objects

r=number of objects selected

In our case: n=15, r=3

Putting values and finding the answer:

$^nP_r\\^{15}P_3=\frac{15!}{(15-3)!} =2730 \ ways$

So, the expression is: $^{15}P_3=\frac{15!}{(15-3)!}$

and 2730 different ways are possible.

7 0

3 years ago