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Maru [420]
3 years ago
6

Need a GED Math test tutor. Comment if I can give you my number to help​

Mathematics
1 answer:
love history [14]3 years ago
3 0

Answer:

sure I'll help, 59.99 per hour. it's a pretty solid deal.

Step-by-step explanation:

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Suppose that 11% of all steel shafts produced by a certain process are nonconforming but can be reworked (rather than having to
levacccp [35]
P = 0.11
1-p = .89
n = 200

mean = n*p = 22
std dev = n*sqrt(p(1-p)/n) = 4.425

find z values for standard normal distribution
Z= (30-22)/4.425 = 1/808
look up table to find P(Z less than 1.808) which is same P(x less than 30)

for 2nd part, you need 2 Z values
Z1 = (25-22) / 4.425 = 0.678
Z2 = (15-22) / 4.425 = -1.58

P(-1.58 less than Z less than 0.678) = P(Z less than .678) - P(Z less than - 1.58)

5 0
4 years ago
Please help me!!!!!! ​
Bogdan [553]

Answer:

32/139

Step-by-step explanation:

There are a total of 42 + 45 + 20 + 32, or 139, candies in the bag.

The probability that the picked candy is purple is therefore

  32

---------

 139

This result cannot be simplified.

5 0
3 years ago
Polygon ABCDE is reflected across the x-axis to form polygon A′B′C′D′E′. Then polygon A′B′C′D′E′ is dilated by a scale factor of
elena-14-01-66 [18.8K]
<span>It's dilated by 0.5 not 2.</span>
5 0
4 years ago
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The rectangle has rotational symmetry of order
nataly862011 [7]

Answer:

The rectangle has rotational symmetry of order = 2

The rectangle's rotational symmetry occurs for angles of 90 degrees.

7 0
4 years ago
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Simplify 19 - 1.67 + (-2.4)
-Dominant- [34]
19-1.67+(-2.4)
-19.73
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4 years ago
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