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balu736 [363]
2 years ago
6

Suppose that 10% of all steel shafts produced by a process are nonconforming but can be reworked (rather than having to be scrap

ped). Consider a random sample of 200 shafts, and let X denote the number among these that are nonconforming and can be reworked. What is the (approximate) probability that X is:
a. Less than 30?
b. Between 15 and 25 (inclusive)?
Mathematics
1 answer:
Klio2033 [76]2 years ago
4 0

Answer:

a?

Step-by-step explanation:

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Check all that apply.
Aneli [31]

Answer:

i believe the it is B,C,D

Step-by-step explanation:

i'm sorry if it is wrong

5 0
2 years ago
What is the fourth row of Pascal’s triangle?
Anna [14]

Answer:

14641

Step-by-step explanation:

formular \: for \: the \: digits \: in \: each \\ row \: of \: a \: pascal \: triangle \: is \:  = 11 {}^{n}  \\ row \: 0 =  \: 11 {}^{0}  = 1 \:  \\ row \: 1 \:  = 11 {}^{1}  = 11 \\ row \:  \: 2 \:  = 11 {}^{2}  = 121 \\ row \: 3 =  \: 11 {}^{3}  = 1331  \\ row \: 4 = 11 {}^{4}  = 14641 \\ therefore \: the \: fourth \: row \: is \: 14641

4 0
1 year ago
Complete the equation describing how x and y are related.
shusha [124]

Answer:

y=-5.5x+-5

Step-by-step explanation:

<em>the slope is -5.5</em>

<em>the y-intercept is what the y-axis is when the x-axis is zero</em>

<em>therefore the y-intercept is -5</em>

hope this helps

have a nice day!!

7 0
2 years ago
Line AB has endpoints A(3,4) and B(-2,8). What is AB to the nearest tenth
Nadya [2.5K]

Answer:

6.4

Step-by-step explanation:

To find the distance you have to do this formula.

\sqrt{(x2 -x1)^{2}+(y2-y1)^{2}}  \\\sqrt{(-2 -3)^{2} + (8-4)^{2}\\} \\\sqrt{(-5)^{2} + (4)^{2}} \\\sqrt{25 + 16} \\\sqrt{41} \\ \\\sqrt{41} = 6.40312\\6.4

6.4 is the answer rounded to the nearest tenth.

Hope this helps!!

3 0
2 years ago
PLEASEE HELL<br> find the solution to the system of equations
seropon [69]

Answer:

(-3, -4)

Step-by-step explanation:

y= -4

so you plus y in for the y=2x+2 equation where you get x=-3

7 0
2 years ago
Read 2 more answers
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