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4 years ago

Why do scientists use the international system of units (SI)

Mathematics

2 answers:

k0ka [10]4 years ago

7 0

So it can be known anywhere. So we use all of the same measurements

BlackZzzverrR [31]4 years ago

5 0

<span>So it can be known anywhere. So we use all of the same measurements</span>

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Practice simplifying rational expressions with negative exponents.

Gelneren [198K]

Answer:

Part 1:- option first is correct

$-\frac{1}{2}ab^{12}$

Part 1:- option third is correct

$\frac{w^{10}}{3y^{4}}$

Step-by-step explanation:

Given:

The given ration expressions are.

1. $\frac{-2a^{2}b^{4}}{4ab^{-8}}$

2. $\frac{-5w^{4}y^{-2}}{-15w^{-6}y^{2}}$

We need to simplify the given expressions.

Solution:

Part 1:-

Given expression is

$=\frac{-2a^{2}b^{4}}{4ab^{-8}}$

Using law of exponents $\frac{x^{m} }{x^{n} } = x^{(m-n)}$

$=-\frac{a^{2-1}b^{4-(-8)}}{2}$

$=-\frac{a^{1}b^{4+8}}{2}$

$=-\frac{ab^{12}}{2}$

$=-\frac{1}{2}ab^{12}$

Therefore, option first $-\frac{1}{2}ab^{12}$ is correct.

Part 2:-

Given expression is.

$=\frac{-5w^{4}y^{-2}}{-15w^{-6}y^{2}}$

Using law of exponents $\frac{x^{m} }{x^{n} } = x^{(m-n)}$

$=\frac{w^{4-(-6)}y^{-2-2}}{3}$

$=\frac{w^{4+6}y^{-4}}{3}$

$=\frac{w^{10}y^{-4}}{3}$

$=\frac{w^{10}}{3y^{4}}$

Therefore, third option $\frac{w^{10}}{3y^{4}}$ is correct.

4 0

3 years ago

Helpppp meee<br> plzzzzzzzzzzzzzz

tigry1 [53]

Answer:

Step-by-step explanation:

A kilogram is for weight, Milliliters is volume, Kilometers is length but too big for a shoe, so Millimeters is the answer.

8 0

3 years ago

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By lunch time, Penelope's mom completed 40% of her to-do list. If she completed 6 tasks, how many total tasks does she have on h

sammy [17]

She has 15 things on her to do list. Hope this helps!

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3 years ago

Read 2 more answers

3.402 divided by 0.07

Taya2010 [7]

Answer:

48.6 is the answer!

Step-by-step explanation:

My calculator--> 3.402/0.07 :)

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3 years ago

There were 70 concert tickets sold for $550. Each adult ticket cost $9 and each child's ticket cost $5. Find the number of adult

Semmy [17]

Answer:

a= 50 c=20 50+20=70 450+100

Step-by-step explanation:

good luck on tes t man

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3 years ago