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2 years ago

Simplify fully. 4 mm ∶ 180 m ∶ 1 cm

Mathematics

1 answer:

Mandarinka [93]2 years ago

7 0

Answer:

first step

convert 180m and 1 cm in mm that is 180000mm and 10mm

then

ples mark me brainlist

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Andrew rode his bike at a constant speed.He rode 1mile in 5 minutes.

Rudiy27

Answer:

Step-by-step explanation

The answer is three because if you did the tree method you will have the same exact answer

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3 years ago

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Explain how to round a number to the nearest ten.

Serhud [2]

After the decimal, the first number is the tenth place, if the second number after the decimal is 5 or bigger then you round up the first number after the decimal. if it’s lower than 5 then you keep the same number

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3 years ago

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How do you subtract radians?

Anit [1.1K]

Just subtract them like normal number.

Example: π/2 - π/4

Just handle it like normal number:

π/2 - π/4 = 2π/4 - π/4 = (2π - π )/ 4 = π/4

Hope this helps.

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4 years ago

I really need help!!!

Zigmanuir [339]

Answer:

$Pr = 6.67\%$

Step-by-step explanation:

Given

$n = 10$ i.e. 10 people

Required

Probability of being next to each other

First, we calculate the total possible arrangements (without any restriction)

$Total = n!$

$Total = 10!$

If the three are to be next to each other,

First, we arrange the three

$r_1 = 3!$

Now, the 3 will be seen as 1; so, we have a total of 8 people i.e. (1 + 7 others)

The arrangement is:

$r_2 =8!$

So, the total arrangement, when they have to be next to one another is:

$r = r_1 * r_2$

$r = 3! * 8!$

The probability is:

$Pr = \frac{r}{n}$

$Pr = \frac{3! * 8!}{10!}$

Expand

$Pr = \frac{3*2*1 * 8!}{10*9*8!}$

$Pr = \frac{3*2*1}{10*9}$

$Pr = \frac{6}{90}$

$Pr = 0.0667$

Express as percentage

$Pr = 0.0667 * 100\%$

$Pr = 6.67\%$

8 0

3 years ago

Simplify the square root of 3 times the fifth root of 3.

bogdanovich [222]

Answer:

<h2><em>Three to the three fifths power.</em></h2>

Step-by-step explanation:

The given expression is

$\sqrt{3\sqrt[5]{3} }$

To simplify this expression, we have to use a specific power property which allow us to transform a root into a power with a fractional exponent, the property states:

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

Applying the property, we have:

$\sqrt{3\sqrt[5]{3}}=\sqrt{3(3)^{\frac{1}{5}}}=(3(3)^{\frac{1}{5}})^{\frac{1}{2}}$

Now, we multiply exponents:

$(3(3)^{\frac{1}{5}})^{\frac{1}{2}}\\3^{\frac{1}{2}}3^{\frac{1}{10}}$

Then, we sum exponents to get the simplest form:

$3^{\frac{1}{2}}3^{\frac{1}{10}}=3^{\frac{1}{2}+\frac{1}{10}} =3^{\frac{10+2}{20}}=3^{\frac{12}{20}} \\\therefore \sqrt{3\sqrt[5]{3}}=3^{\frac{3}{5} }$

Therefore, the right answer is <em>three to the three fifths power.</em>

3 0

4 years ago

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