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jonny [76]
3 years ago
15

Tawiah is x years old now. a) How old was he 7 years ago? b) How old will he be in 15 years from now? c) If his age in 15 years

time will be three times his age 7 years ago, how old is he now?​ thanks
Mathematics
1 answer:
Brilliant_brown [7]3 years ago
6 0

i think x = 56 but im not 100% sure

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ANTONII [103]

Answer:

I'm guessing the right answer should be B

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ABCD is an isosceles trapezoid.
Eduardwww [97]

Answer:

∡b = 53°

∡d = 127°

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Step-by-step explanation:

in trapezoids, the two top angles are equal and the two bottom are equal

also, there are 360 degrees in any 4-sided polygon

53 + 53 + x + x = 360

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In the Journal of Shell and Spatial Structures (December 1963), environmental researcher Vivek Ajmani studied the performance of
igomit [66]

Answer:

The standard deviation of the load distribution is of 5102.041 pounds.

Step-by-step explanation:

When the distribution is normal, we use 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 question, we have that:

\mu = 20000

Also, the probability that the load is between 10,000 and 30,000 pounds is 0.95.

10,000 pounds and 30,000 pounds are equidistant from the mean. Due to this, and the probability of 0.95 of having a value in this range, 10000 is the (100-95)/2 = 2.5th percentile and 30000 is the (100+95)/2 = 97.5th percentile. Applying one of them, we find the standard deviation.

30,000 is the 97.5th percentile:

This means that when X = 30000, Z has a pvalue of 0.975. So when X = 30000, Z = 1.96. Then

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

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\sigma = \frac{10000}{1.96}

\sigma = 5102.041

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8 0
3 years ago
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laila [671]

Answer:

x=-11/8

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x-(5/8)=-2

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x-(5/8)= -16/8

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5 0
3 years ago
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loris [4]

Answer:

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Step-by-step explanation:

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The remainder is -2.

5 0
2 years ago
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