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aleksklad [387]

2 years ago

13

Ricky takes 2 coins at random from 3 quarters, 5 dimes, and two nickels in his pocket.

2 answers:

antoniya [11.8K]2 years ago

5 0

What is the P(nickel;then a quarter) with replacement

Stels [109]2 years ago

3 0

$|\Omega|=10^2=100\\|A|=2\cdot3=6\\\\P(A)=\dfrac{6}{100}=6\%$

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How many 4 digit palidromes are there?

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What is the difference between 21,807-10,739

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3 years ago

Can someone help?Im stuck on the attached question

Lana71 [14]

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4 years ago

Please help me I really really need help

postnew [5]

Answer:

$B) \sqrt{2}$ ÷ $2\sqrt{5}$

Step-by-step explanation:

$A$ → $2\sqrt{5}$ ÷ $\sqrt{5}$

$= \frac{2\sqrt{5} }{\sqrt{5} }$

<u>→ </u><u>2</u><u> is a rational number</u>

$B)$ → $\sqrt{2}$ ÷ $2\sqrt{5}$

$=\frac{\sqrt{2} }{2\sqrt{5} }$

$=\frac{\sqrt{2} }{\sqrt{2}*\sqrt{2}*\sqrt{5} }$

$= \frac{1}{\sqrt{10} }$

<u>↑ is irrational number</u>

$C)$ $\frac{\pi }{2}$ ÷ $\pi$

$= \frac{\pi }{2} *\frac{1}{\pi }$

$=\frac{1}{2}$

<u>↑ is a rational number</u>

$D)$ $5\pi$ ÷ $\pi$

$= 5$

<u>↑ is a rational number</u>

<u>So,</u><u> Option B</u><u> is your answer</u>

$-----------------$

hope it helps..

have a great day!!!

5 0

3 years ago

When rewriting a radical expression to a rational exponent expression, which number becomes the denominator of the exponent

ladessa [460]

Answer:

B. The root/index.

Step-by-step explanation:

For example:

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3 is the root index which becomes the denominator (3) of the exponent.

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3 years ago