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2 years ago

jess travels 5 miles to school and pam travels 10 km. Who travels further? plz help i got 2 minutes ti answer

Mathematics

1 answer:

son4ous [18]2 years ago

6 0

Answer:

pam

Step-by-step explanation:

10k is over 6 miles

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If (x^2+1)/x = 7 find x^2+(1/x^2)

White raven [17]

Answer:

x²+(1/x²) = 47

Step-by-step explanation:

by identity : (a+b)² = a²+b²+2ab

(x+1/x)²= x²+(1/x)²+2(x)(1/x)

(x+1/x)²= x²+(1/x²)+2....(1)

since : (x²+1)/x = 7

(x²/x) +(1/x) = 7

x + (1/x )= 7

put the value for : x +(1/x) in (1) :

49 = x²+(1/x²)+2

x²+(1/x²) = 47

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3 years ago

In a survey conducted by a website, employers were asked if they had ever sent an employee home because they were dressed inappr

MA_775_DIABLO [31]

Answer:

Test statistic Z = p diff/std error = 2.3333

p value one tailed = 0.009815

Step-by-step explanation:

Given that in a survey conducted by a website, employers were asked if they had ever sent an employee home because they were dressed inappropriately.

Sample size n = 2755

Sample favourable x = 967

Sample proportion p = $\frac{967}{2755} \\=0.3510$

$H_0: p = 0.3333\\H_a: p >0.3333$

(right tailed test at 5% significance level)

p difference = 0.0210

Standard error assuming H0 is true is $\sqrt{\frac{0.3333*0.6667}{2755} } \\=0.0090$

Test statistic Z = p diff/std error = 2.3333

p value one tailed = 0.009815

Since p <0.05 we reject null hypothesis.

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3 years ago

Juan has a piano recital next month.last week he practiced for 8 hours in the morning and 7 hours in the afternoon. Each practic

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3 years ago

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How many times does 81,000 goes into 8,000

Effectus [21]

Zero. That number cannot go into that one

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3 years ago

How do I factorise 42 - 66x

lisov135 [29]

The answer is 6(-11x+7)

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