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Murrr4er [49]
2 years ago
6

50 POINTSSSS!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Anit [1.1K]2 years ago
8 0

Answer: To find the critical value, follow these steps.

Compute alpha (α): α = 1 - (confidence level / 100)

Find the critical probability (p*): p* = 1 - α/2.

To express the critical value as a z-score, find the z-score having a cumulative probability equal to the critical probability (p*).

Step-by-step explanation:

Brums [2.3K]2 years ago
4 0

Answer: 000.5 (2+1)39-1=38

Step-by-step explanation:

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A circle whose area is 4 has a radius of x find the area of a circle whose radius is 3x
____ [38]
The first one is 1.12867 because you need to set it up like this.
4=3.14(x)squared
4/3.14=x(squared)
x=1.12867

The second one is done simply by multiplying it out.
A=3.14(3x)squared
A=3.14(9x[squared])
A=28.26x[squared]        -The squared is referring to the x.
7 0
2 years ago
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Three cards are drawn with replacement from a standard deck. what is the probability that the first card will be a diamond, the
svlad2 [7]
507/17576 or 0.0288 

you take all the probabilities separate then multiply them all together. Then Simplify
6 0
3 years ago
Please help, thank you so much !!
Sliva [168]
Answer: x = 54

Explanation:

180 - 14 = 166

3x + 4 = 166
3x = 162
x = 162/3 = 54
6 0
2 years ago
Someone tell me where everyone is going right please !!
myrzilka [38]

Answer:

A 2

B 1

C 4

D 3

Step-by-step explanation:

( ) means not including (also used for infinity)

[ ] means including

The answer choices are in interval form, showing all the possible answer choices between two numbers and if the answer choice includes or excludes a number using the () []

Explanation for A:

x < 7.8 means x won't include 7.8 since the symbol is "less than" and not "less than or equal to".

x can be anything, it just has to be less than 7.8, so the answer is:

2 (-infinity, 7.8)

Explanation for B:

x <= 7.8 means x will include 7.8 since the symbol means "less than or equal to".

x can be anything, it just has to be less than or equal to 7.8, so the answer is:

1 (-infinity, 7.8]

Explanation for C:

x >= 7.8 means x will include 7.8 since the symbol means "greater than or equal to".

x can be anything, it just has to be greater than or equal to 7.8, so the answer is:

4 [7.8, infinity)

Explanation for D:

x > 7.8 means x won't include 7.8 since the symbol means "greater than" and not "greater than or equal to".

x can be anything, it just has to be greater than 7.8, so the answer is:

3 (7.8, infinity)

Hope it helps (●'◡'●)

5 0
2 years ago
Read 2 more answers
Work out the gradient of the line 3y-12x+7=0
nika2105 [10]

Answer:

3y=12x-7

y=4x-7/3

so its 4

7 0
2 years ago
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