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2 years ago

-8(-x3/4y+7/2) 16 points rewarded for the correct answer.

Mathematics

2 answers:

sladkih [1.3K]2 years ago

6 0

Answer:

2x^3y−28

Step-by-step explanation:

If you need a step-by-step explanation please ask!

labwork [276]2 years ago

4 0

Answer:

2x^3 y - 28 should be your answer

Step-by-step explanation:

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Suppose z is proportional to the square root of x. If z = 717 when x = 9, find the proportionality constant k.??

Dahasolnce [82]

Answer:

239

Step-by-step explanation:

Write the equation. Fill in the given values, and solve for the unknown,

z = k√x

717 = k√9

k = 717/3 = 239

The constant of proportionality is 239.

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1 year ago

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Answer:

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Step-by-step explanation:

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NeX [460]

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2 years ago

a coin is tossed, then a letter in the word accomplishment is chosen at random. find the probability of heads, then a vowel

emmasim [6.3K]

Answer:

$\frac{5}{52}$

Step-by-step explanation:

Coin toss:

$Total\ outcome=\{H,T\}\\\\Favourable\ outcome=\{H\}\\\\P(Head)=\frac{Favourable\ outcome}{Number\ of\ total\ outcome}\\\\P(Head)=\frac{1}{2}$

Letter Selection:

$Number\ of\ total\ outcomes=26\ \ \ \ \ \ \ as\ total\ letters\ are\ 26\\\\Favourable\ outcomes=5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ as\ there\ are\ 5\ vowels\\\\P(vowel)=\frac{Favourable\ outcomes}{Number\ of\ total\ outcomes}\\\\P(vowel)=\frac{5}{26}$

$These\ two\ events\ are\ independent.\\\\Hence\ probability\ of\ head\ and\ then\ vowel=\frac{1}{2}\times \frac{5}{26}=\frac{5}{52}$

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3 years ago

A dot plot titled hours of practice this week going from 0 to 4. 0 has 1 dot, 1 has 2 dots, 2 has 0 dots, 3 has 4 dots, and 4 ha

WITCHER [35]

Answer:

1, 2, 3, 5

Step-by-step explanation:

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3 years ago