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Deffense [45]
3 years ago
14

Please help, i im having trouble

Mathematics
2 answers:
Grace [21]3 years ago
5 0
The best way to solve this equation is Elimination.

If you want me to solve, comment immediately.

Thanks!! :)
adelina 88 [10]3 years ago
3 0

Answer:

Elimination

Step-by-step explanation:

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3 years ago
Logarithms and exponentials are?
Aneli [31]

Answer:

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Step-by-step explanation:

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3 years ago
X is a normally Distributed random variable with a standard deviation of 4.00. Find the mean of X when 64.8% of the area lies to
Cerrena [4.2K]

Answer:

7

Step-by-step explanation:

σ = 4 ; μ =?

8.52 to the left of X

.

P(X < 8.52) = 64.8%

P(X < 8.52) = 0.648

Using the Z relation :

(x - μ) / σ

P(Z < (8.52 - μ) / 4)) = 0.648

The Z value of 0.648 of the lower tail is equal to 0.38 (Z probability calculator)

Z = 8.52 - μ / 4

0.38 = 8.52 - μ / 4

0.38 * 4 = 8.52 - μ

1.52 = 8.52 - μ

μ = 8.52 - 1.52

μ = 7

5 0
3 years ago
When Zack checked his solution, it didn’t work. What was his mistake?
KatRina [158]

Answer:

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Step-by-step explanation:we just is messed up in life

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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