3 years ago

Help! Please! Picture above^

Mathematics

1 answer:

Ludmilka [50]3 years ago

3 0

Answer:

40.89

Step-by-step explanation:

Simplify the expression

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What is 927 divided by 9 step by step

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Answer:

103

Step-by-step explanation:

$\frac{927}{9} = 103$

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Solve for -4x-4=-4(x+2)

Sergeu [11.5K]

Answer:

no solutions

Step-by-step explanation:

-4x-4=-4(x+2)

Distribute the negative

-4x-4 = -4x-8

Add 4x to each side

-4x+4x-4 = -4x+4x-8

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4 years ago

What decimals is equivalent to 40/100?

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3 years ago

Your medical research team is investigating the standard deviation of the cost of a 30-day-supply of a certain heart medication.

Valentin [98]

Considering the situation described, the hypothesis tested are given as follows:

The null hypothesis is $H_0: \sigma \geq 23$

The alternative hypothesis is $H_1: \sigma < 23$

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the standard deviation is not less than $23, that is:

$H_0: \sigma \geq 23$

At the alternative hypothesis, it is tested if there is significant evidence t conclude that the standard deviation is less than $23, that is:

$H_1: \sigma < 23$

More can be learned about an hypothesis test at brainly.com/question/26454209

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