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never [62]
3 years ago
8

I need to fine sinx=18/13

Mathematics
1 answer:
tia_tia [17]3 years ago
5 0

Answer:

Step-by-step explanation:

sin x=18/13>1

which is impossible as |sin x|≤1

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Carolina s class has 6 people with freckles 15 of them have red hair
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3 years ago
Use the slope formula to find the missing coordinate. m =3/5 , P(3, 2) and Q(8,_)
FromTheMoon [43]
M=(y₂-y₁)/(x₂-x₁). Let  Z be the missing coordinate

3/5 = (Z - 2)/(8-3)
3/5 = (Z-2)/5
3 = Z-2      and Z =5, So Q(8,5)
5 0
2 years ago
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2, 4, 6, 7, 6, 6, 6,3 What is the Mean? What is the Median? What is the Mode? What is the Range?​
kotegsom [21]

Answer:

Mean: 5

Median: 6

Mode: 6

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7 0
3 years ago
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The heights (measured in inches) of men aged 20 to 29 follow approximately the normal distribution with mean 69.3 and standard d
Zolol [24]

Answer:

The middle 92% of all heights fall between 64.4 inches and 74.2 inches.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 69.3, \sigma = 2.8

Between what two values does that middle 92% of all heights fall?

The middle 92% falls from X when Z has a pvalue of 0.5 - 0.92/2 = 0.04 to X when Z has a pvalue of 0.5 + 0.92/2 = 0.96. So from the 4th percentile to the 96th percentile.

4th percentile

X when Z = -1.75

Z = \frac{X - \mu}{\sigma}

-1.75 = \frac{X - 69.3}{2.8}

X - 69.3 = -1.75*2.8

X = 64.4

96th percentile

X when Z = 1.75

Z = \frac{X - \mu}{\sigma}

1.75 = \frac{X - 69.3}{2.8}

X - 69.3 = 1.75*2.8

X = 74.2

The middle 92% of all heights fall between 64.4 inches and 74.2 inches.

6 0
3 years ago
Use properties to evaluate - (- = {)6.<br> O A. 1<br> B.<br> c.-<br> O D. 1 /<br> SUBMIT
bogdanovich [222]

Answer:

-4/5

Step-by-step explanation:

first use bodmas to evaluate work on brackets then division

6 0
2 years ago
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