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2 years ago

Simplify square root of 484

Mathematics

1 answer:

zhannawk [14.2K]2 years ago

3 0

Answer:

Step-by-step explanation:

484 = 2^2 × 11^2

√484 = 2×11 = 22

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tankabanditka [31]

#1. B
(z * z^2 + z * 2z + z * 4) – (-2 *z^2 – (-2) 2z – (-2) 4)
Z^3 + 2z^2 + 4z – 2z^2 -4z – 8
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#2 and #3. D
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#4. D.
(x - 7)(x + 7)(x- 2)
x^2 + 7x – 7x -49
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3 years ago

A certain star is 2.4 x 102 light years from the Earth. One light year is about 5.9 x 1012 miles. How far

Studentka2010 [4]

Answer:

2.5 x $10^{15}$ miles

Step-by-step explanation:

We are given that 1 light year ≈ 5.9 x $10^{12}$ miles so:

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Multiply 4.3 an 5.9 and round to 2 significant digits then add the exponents:

≈25 x $10^{14}$

This is not the scientific notation since the number is not between 0 and 10 so we move the decimal point by 1 place to the left. We then add 1 to the exponent to obtain the final answer:

≈ 2.5 x $10^{15}$ miles

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Answer:

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Step-by-step explanation:

do you want an explanation?

btw, plz brainliest :)

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