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3 years ago

Simplify the following expression. a^-3/a^-3

1 answer:

7 0

Answer:
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(a^-3) / (a^-3) = 1 ; Given a ≠ 0 .
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T-T help, i do not understand functions....

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1. Rate of change is 2/5
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3. Rate of change is -1x
4.Rate of change is 1/4

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2 years ago

What's 2 1/8 - 1 7/8

ankoles [38]

Answer:

1/4 or 0.25

Explanation: Convert the mixed numbers to improper fractions, then find the LCD and combine.

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Hi what is the answer for this

svp [43]

a = a + d(n-1)

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this is the formula for the arithmetic sequence.

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3 years ago

Find (2.2 x 105) ÷ (4.4 x 10-3). When you regroup the factors, what do

SVEN [57.7K]

Answer:

$\sf 5.0 \times 10^7$

Step-by-step explanation:

Given expression:

$\sf (2.2 \times 10^5) \div (4.4 \times 10^{-3})$

$\implies \sf \dfrac{2.2 \times 10^5}{4.4 \times 10^{-3}}$

$\implies \sf \dfrac{2.2}{4.4} \times \dfrac{10^5}{10^{-3}}$

$\implies \sf (2.2 \div 4.4) \times (10^5 \div 10^{-3})$

$\textsf{Apply exponent rule} \quad a^b \div a^c=a^{b-c}$

$\implies \sf 0.5 \times 10^{5-(-3)}$

$\implies \sf 0.5 \times 10^8$

Write in scientific notation:

$\implies \sf 5.0 \times 10^7$

The quotient of the decimal factors is 0.5 and therefore less than 1.

The first factor in scientific notation must be less than 10 and greater than or equal to 1. Therefore, 0.5 should be multiplied by 10 to become 5.0, which means the exponent of the quotient will be decreased by 1.

Learn more about exponents here:

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brainly.com/question/28211147

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