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sweet [91]
3 years ago
14

PLEASE HELP ME im dying again

Mathematics
1 answer:
sergejj [24]3 years ago
6 0
X - distance between Jie and Xiaoqing.

\dfrac{x}{24\sqrt{5}}=\sin30^\circ\\\\\\\dfrac{x}{24\sqrt{5}}=\dfrac{1}{2}\qquad\qquad\qquad\text{(cross multiply)}\\\\\\2x=24\sqrt{5}\quad|:2\\\\x=12\sqrt{5}\\\\\boxed{x\approx26.83}
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Using z-scores, a population with µ = 37 and σ = 6 is standardized so that the new mean is µ = 50 and σ = 10. After the standard
PIT_PIT [208]

Answer:

X = 40

Step-by-step explanation:

Original mean (µ) = 37

Original standard deviation (σ) = 6

New mean (µ) = 50

New standard deviation (σ) = 10

The z-score of an individual who had a score of X=55 in the new distribution is given by:

z=\frac{X-\mu}{\sigma}\\z=\frac{55-50}{10}\\z=0.5

A z-score of 0.5, in the original distribution yields a score, X, of:

0.5=\frac{X-37}{6}\\X=0.5*6 +37\\X=40

This individual’s score in the original distribution is X = 40

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Finding the Area of Faces of a Rectangular Prism
Nikolay [14]

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Read 2 more answers
The distance between Ali's house and 1 point
Marrrta [24]
First we have to figure out how long it would take for the full voyage and that would be 135 + (135 x 1/3) and the answer to that would be 135 + 45 = 180 and that means that 180 is the total minutes it would take to travel the whole trip, now we have to calculate average speed which would be 135(distance)/180(time) which would end up being 135 miles/ 3 hours, now we divide the entire equation by 3 which would be 45/1
CONCLUSION ——————————
Ali would be driving 45 miles per hour
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