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2 years ago

Solve each system by substitution. 1) y= 2x - 16 y= -2

Mathematics

1 answer:

DochEvi [55]2 years ago

7 0

Answer:

x = 7

Step-by-step explanation:

Solve equation [2] for the variable y

[2] y = - 2

Plug this in for variable y in equation [1]

[1] (-2) - 2x = -16

[1] - 2x = -14

Solve equation [1] for the variable x

[1] 2x = 14

[1] x = 7

Solution:
y = -2
x = 7

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3 years ago

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NemiM [27]

Answer:
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Explanation:
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Step 1:
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3 years ago

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3 years ago

He mean potassium content of a popular sports drink is listed as 140 mg in a 32-oz bottle. Analysis of 20 bottles indicates a sa

mezya [45]

Answer: (A) H0: μ = 140 mg vs. H1: μ ≠ 140 mg

Step-by-step explanation:

Usually null hypothesis represents the claim that the values associated to the groups being tested have no statistical difference but alternative hypothesis supports the claim that there is statistical difference.

Let $\mu$ be the population mean .

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