3 years ago

Dose this table represent a function?

Mathematics

1 answer:

iogann1982 [59]3 years ago

8 0

No it doesnt because it 8 is repeated and function has 1 outcome for each x

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Solve for x. Round to the nearest tenth.

ivanzaharov [21]

x ≈ 59°

Work is on piece of paper, yet I don't have a phone. I'm certain that is the answer.

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3 years ago

What is the justification for the first step in proving the formula for factoring the sum of cubes?

Anna11 [10]

Explanation:

The formula isnt correctly written, it should state:

$a^3+b^3 = (a+b)(a^2-ab+b^2)$

You have to start from $(a+b)(a^2-ab+b^2)$ and end in a³+b³. On your first step, you need to use the distributive property.

$(a+b)(a^2-ab+b^2) = a*(a^2-ab+b^2) + b*(a^2-ab+b^2)$

This is equal to

$a*a^2-a*(ab) + a*b^2 + b*a^2-b*(ab) + b*b^2 = a^3 - a^2b + ab^2 +ba^2 -b^2a +b^3$

Note that the second term, -a²b, is cancelled by the fourth term, ba², and the third term, ab², is cancelled by the fifht term, -b²a. Therefore, the final result is a³+b³, as we wanted to.

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4 years ago

Sarah biked the same distance each day for 6 days. If she traveled 468 kilometers altogether, how many kilometers did she travel

I am Lyosha [343]

76 kilometers per day.

Step by step

468 divided by 6 = 76

76•6=468

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3 years ago

Find the number in the proportion <br> 2/12=5/x

Sliva [168]

Answer: x = 30

2/12 x 5/x

(Cross Multiply)

2x = 60

x = 30

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3 years ago

The ruby throated hummingbird has a wingbeat of about 200 beats per second about how many wing Beats would a hummingbird have in

Nady [450]

36,000 wing beats

60 sec= 1 minute 60*3=180sec/3minutes

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4 years ago