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mafiozo [28]
3 years ago
15

A small town decided to get into the holiday spirit during Halloween. Every person in

Mathematics
1 answer:
AVprozaik [17]3 years ago
4 0
It’s A 310 divided by 2 is 155
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The lengths of nails produced in a factory are normally distributed with a mean of 3.34 centimeters and a standard deviation of
Shtirlitz [24]

Answer:

3.47 and 3.21

Step-by-step explanation:

Let us assume the nails length be X

X \sim N(3.34,0.07^2)

Value let separated the top 3% is T and for bottom it would be B

P(X < T)= 0.97

Now converting, we get

P(Z < \frac{T-3.34}{0.07})= 0.97

Based on the normal standard tables, we get

P(Z < 1.881)= 0.97

Now compare these two above equations

\frac{T-3.34}{0.07} = 1.881 \\\\ T = 1.881 \times 0.07 + 3.34 \\\\ = 3.47

So for top 3% it is 3.47

Now for bottom we applied the same method as shown above

P(Z < \frac{B-3.34}{0.07})= 0.03

Based on the normal standard tables, we get

P(Z < -1.881)= 0.03

Now compare these two above equations

\frac{B-3.34}{0.07} = -1.881

= -1.881 \times 0.07 + 3.34 \\\\ = 3.21

hence, for bottom it would be 3.21

7 0
3 years ago
Dora's car can travel 81 miles using 2.7 gallons of gas. At this rate, how far, in miles, can Dora travel using
Delvig [45]

Answer:

2190 miles

Step-by-step explanation:

8 0
3 years ago
What is the angle of elevation to the nearest tenth of a degree to the top of a 35-ft building from 75 ft away?
choli [55]
You set up the equation with 35/75 and you said that equal to X tan. You then take your calculator and type in 35÷75 and press the equal button. You then hit the second function button and then press tan and it will give you 25

6 0
3 years ago
HELP ASAPPPP !!!! NEED ANSWERS NOW!!
Nikitich [7]

Answer: 1. 2nd endpoint  (24,-18)       2. 2nd endpoint: (-19,4)

Step-by-step explanation:

1.   \frac{-10+x}{2} = 7  x = 24

    \frac{6+y}{2} = -6    y= -18

2nd endpoint: (24,-18)

   

2.  \frac{-1+x}{2} = -10   x= -19  

   \frac{0+y}{2} =  2     y= 4

6 0
3 years ago
An expression is a mathematical statement using numbers, operations, and variables true or false
Mariana [72]

Answer/Step-by-step Explanation:

True. Expressions cm be expressed using the above listed

3 0
3 years ago
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