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3 years ago

Solve the equation. r/2-6=14

2 answers:

4 0

AleksandrR [38]3 years ago

3 0

R/2-6=14
r/2=20
r=40
The answer is 40

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(−5)3x7(yz)4 / (3)2x2y8z2

g100num [7]

Answer:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

Step-by-step explanation:

Given:

The expression to simplify is given as:

$\frac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}$

In order to simplify this, we have to use the law of indices.

1. $(ab)^m=a^mb^m$

So, $(yz)^4=y^4z^4$

Substitute this value in the above expression. This gives,

$=\dfrac{(-5)3x^7y^4z^4}{(3)2x^2y^8z^2}\\\\\\=\dfrac{-15x^7y^4z^4}{6x^2y^8z^2}......(-5\times 3=15\ and\ 3\times 2=6)$

Now, we use another law of indices.

2. $\frac{a^m}{a^n}=a^{m-n}$

So, $\frac{x^7}{x^2}=x^{7-2}=x^5,\frac{y^4}{y^8}=y^{4-8}=y^{-4}, \frac{z^4}{z^2}=z^{4-2}=z^2$

Substitute these values in the above expression. This gives,

$=\frac{-15}{6}\times x^5\times y^{-4}\times z^2\\\\=\frac{-5x^5y^{-4}z^2}{2}$

Finally, we further simplify it using the law $a^{-m}=\frac{1}{a^m}$

So, $y^{-4}=\frac{1}{y^4}$

Therefore, the given expression is simplified as:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

5 0

3 years ago

Leo prepared 16 kilograms of dough after

tatuchka [14]

Step-by-step explanation:

16 kg= 8 hours (divide by 8 to find 1 hour how many kg)

2kg=1 hour ( multiply by 9 as we need to find 18 kg

so 9 hours=18kg

So it'll take 9 hours for 18 kg of dough to be made

Hope this helps!!!

Have a nice day:)

3 0

3 years ago

5.6=I+4.09 what is I? I need help I just need answers in the 10 minutes please helpp

serious [3.7K]

Answer:

the answer should be I= 1.51

3 0

3 years ago

Read 2 more answers

Hello can somedy help me please <br> thank you in advance

alina1380 [7]

Answer:

Area of the circle=πr²

$= 3.142 \times {4}^{2} \\ = 50.272cm \\ = 50.3cm$

4 0

3 years ago

3/5 divided by 1/2

balu736 [363]

Answer:

The work space in Elisha's room has a width of 1/2 meter and an area of 3/5 square meter. How long is it?

Step-by-step explanation:

In this, width of the room is given and the area is given. We have to find the length.

To find the length, area should be divided by width.

ie. 3/5 divided by 1/2

6 0

3 years ago