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zhuklara [117]
2 years ago
10

a rare coin was bought for $30.00 2 years ago.It is now worth $75.00 . What is the percent increase in worth?​

Mathematics
1 answer:
Vera_Pavlovna [14]2 years ago
8 0

Answer:

100% +100%= 60+100%=90 - 50% is 75 so 250%

Step-by-step explanation:

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Find -3(6m-8)+(-4+2m).
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A survey shows that 10% of the population is victimized by property crime each year. A random sample of 527 older citizens (65 y
jekas [21]

Answer:

The data provide sufficient evidence that older people are more likely to be victimized.

Step-by-step explanation:

H 0 : P = 0.10

H 1 : P > 0.10 (Right tailed test)

n = 527, P = 0.1235

The test statistics

x = P - p / \sqrt{p*(1-p) / n}

x = 0.1235 - 0.10 / \sqrt{0.10 * 0.90 / 527}

x = 0.0235 / \sqrt{0.09 / 527}

x = 0.0235 / \sqrt{0.00017077798}

x = 0.0235 / 0.0130682049264618

x = 1.798257689731729

x = 1.798

P value = [1 - p(Z > 1.7980] (Right tailed test)

P value = 0.036089

The P - Value is very small, so <u>reject H0</u>

Conclusion: The data provide sufficient evidence that older people are more likely to be victimized.

7 0
3 years ago
Help!!!!!! I’ve been working on this for 1 hour
kifflom [539]

Answer:

7.83

Step-by-step explanation:

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5 0
3 years ago
HELP!!!!!!!!!!!!!!!!
Serggg [28]
Absolute value means ignore negative signs, so #38 is asking is 282 greater or less than 279. it's greater. #39 is negative of |-10| the absolute value signs work as parentheses too, so it's -(10) so -10
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