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blagie [28]
3 years ago
13

For a confidence level of 88%, find the critical value for a normally distributed variable. The sample mean is normally distribu

ted if the population standard deviation is known.
Mathematics
1 answer:
Elanso [62]3 years ago
8 0

Answer:

z = ±  0.772193214

Step-by-step explanation:

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Can someone help with the polynomials? Please
kolbaska11 [484]

Answer:

22x^2 -10xy + 12x

Step-by-step explanation:

To add and subtract polynomials, combine only like terms. When doing it vertically, stack polynomials and line up the same bases and exponents. Once this is done, simply add and subtract the coefficients.

  10x^2 + 12xy + 4x

+ 12x^2 -22xy + 8x

_________________

22x^2 -10xy + 12x

Here we added 10 + 12 = 22, 12 + -22 = -10 and 4 + 8 = 12.

8 0
3 years ago
This is an off topic question but i feel the need to let other peoples brains keep running so these are the questions i will giv
serg [7]
<span>−4.6−(0.4+7.2)
</span><span>−20+(−40)+(−60)

4 and 5 is properties of addition

-80 is your answer

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6 0
3 years ago
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There are 252 pieces of candy in a 14-ounce jar. How many pieces of candy are there per ounce in the jar?
djyliett [7]

"Per" essentially means "divided by." To find pieces per ounce, divide pieces by ounces.


(252 pieces)/(14 ounces) = (252/14) pieces/ounce = 18 pieces/ounce

5 0
3 years ago
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A mountain climber on Mount Everest is at 29,035 feet above sea level a stone at the bottom of the sea is at 1,349 ft below sea
slavikrds [6]
30,384 feet difference between the two, since the climber is 29,035 feet above sea level you take a positive 29,035 and a -1,349 due to being below sea level, you add the two together with the equation 29,035+1349=30,384 feet
3 0
3 years ago
A rectangular bathroom mirror is 4 feet wide and 2 feet tall. What is its perimeter?
romanna [79]

Answer:

The perimeter is 24 feet :]

<em>hope this helps! <33</em>

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2 years ago
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