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3 years ago

15

What is 0.045 in scientific notation

2 answers:

strojnjashka [21]3 years ago

8 0

4.5 x 10 exponent -2

sdas [7]3 years ago

6 0

The decimal moves 2 spaces to the left to be placed before 4, which is the first non zero number. Thus is 4.5x10 2nd power negative since the decimal moved left. The decimal point moves 5 places left to be placed after 2, which is the first non zero number

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Combine the like terms to create an equivalent expression: <br> 2s+(−4s)=?

Sergeeva-Olga [200]

Answer:

$2s+\left(-4s\right)=-2s$ is the equivalent expression as $2s+\left(-4s\right)$ is equal to $-2s$ .

Step-by-step explanation:

Considering the expression

$2s+\left(-4s\right)$

As we know that

Like terms are said to be the terms which hold the same variables raised to the same power.

For example, $3x$ and $2x$ are like terms as they contain the same variable $x$ raised to the same power.

Lets solve the expression

$2s+\left(-4s\right)$

$\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a$

$2s-4s$

$\mathrm{Add\:similar\:terms:}\:2s-4s=-2s$

$-2s$

Therefore,

$2s+\left(-4s\right)=-2s$ is the equivalent expression as $2s+\left(-4s\right)$ is equal to $-2s$ .

Keywords: equivalent expression, like terms

Learn more about equivalent expression from brainly.com/question/8902137

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Answer:

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Step-by-step explanation:

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