3 years ago

HELP AND PLEASE BE SERIOUS ABOUT THE ANSWER (Ignore the part I colored out)

Mathematics

1 answer:

erica [24]3 years ago

6 0

Answer:

-1.5

Step-by-step explanation:

srry if not correct

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3 years ago

Write this decimal as a fraction. 0.45 repeating

sergij07 [2.7K]

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= 45/99 (since 45 is the repeating part of the decimal and it contains 2 digits). We can divide both the top and bottom parts by 9 to find that 0.454545… = 45/99 = 5/11.

Step-by-step explanation:

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Read 2 more answers

Use the normal distribution of SAT critical reading scores for which the mean is 502 and the standard deviation is 116. Assume t

PSYCHO15rus [73]

Answer:

(a) 93.19%

(b) 267.3

Step-by-step explanation:

The population mean and standard deviation are given as 502 and 116 respectively.

Consider, <em>X</em> be the random variable that shows the SAT critical reading score is normally distributed.

(a) The percent of the SAT verbal scores are less than 675 can be calculated as:

$P(X$

Thus, the required percentage is 93.19%

(b)

The number of SAT verbal scores that are expected to be greater than 575 can be calculated as:

$P(X>575)=P(\frac{x-502}{116}>\frac{575-502}{116}\\P(X>575)=P(Z>\frac{575-502}{116})\\P(X>575)=P(Z>0.6293)\\P(X>575)=0.2673$

So,

Out of 1000 randomly selected SAT verbal scores, 1000(0.2673) = 267.3 are expected to have greater than 575.

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Zane earns $12.25 per hour. He has saved $25 and needs at least $270 to buy tickets to a game. Select the inequality that best r

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option 3

Step-by-step explanation:

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At this point I’m just gonna post all the questions so stay online. y’all are so smart. 2 more to go! Xoxo <3

spayn [35]

Answer:172.5

Step-by-step explanation:Xoxo

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