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densk [106]
3 years ago
7

The overhead reach distances of adult females are normally distributed with a mean of 202.5 and standard deviation of 8 cm. a. F

ind the probability that an individual distance is greater than 215.90 cm. b. Find the probability that the mean for 20 randomly selected distances is greater than 201.20 cm. c. Why can the normal distribution be used in part (b)even though the sample size does not exceed 30?
Mathematics
1 answer:
Lorico [155]3 years ago
4 0

Answer:

HSDHJSDHJS

Step-by-step explanation:

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Answer correct please
natita [175]

Answer:

correct

Step-by-step explanation:

4 0
3 years ago
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Yuri thinks that 3/4 is a root of the following function. q(x) = 6x3 + 19x2 – 15x – 28 Explain to Yuri why 3/4 cannot be a root.
k0ka [10]

Answer:

Yuri is not correct.

Step-by-step explanation:

Given expression is q(x) = 6x³ + 19x² - 15x - 28

If 'a' is a root of the given function, then by substituting x = a in the expression, q(a) = 0

Similarly, for x = \frac{3}{4},

q(\frac{3}{4})=6(\frac{3}{4})^3+19(\frac{3}{4})^2-15(\frac{3}{4})-28

       = 6(\frac{27}{64})+19(\frac{9}{16})-15(\frac{3}{4})-28

       = (\frac{162}{64})+(\frac{171}{16})-(\frac{45}{4})-28

       = (\frac{162}{64})+(\frac{684}{64})-(\frac{720}{64})-\frac{1792}{64}

       = -\frac{1666}{64}

       = -\frac{833}{32} ≠ 0

Therefore, Yuri is not correct. x = \frac{3}{4} can not be a root of the given expression.

6 0
3 years ago
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Help me please!!!!!!!
yawa3891 [41]
The answer would be B
7 0
3 years ago
5-7k=-4(k+1)-3 add work pleasee!!!
marshall27 [118]

Answer:

k=4

Step-by-step explanation:

5-7k=-4(k+1)-3

Distribute

5-7k=-4k-4-3

Combine like terms

5-7k=-4k-7

Add 7k to each side

5-7k +7k = -4k+7k-7

5 = 3k-7

Add 7 to each side

5+7 = 3k-7+7

12 = 3k

Divide by 3

12/3 = 3k/3

4=k

3 0
2 years ago
Read 2 more answers
Which of the following is considered one of the undefined terms of geometry?
cupoosta [38]
The answer is a line segment
7 0
3 years ago
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