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Montano1993 [528]
3 years ago
6

HELP 12 pts!

Mathematics
2 answers:
OverLord2011 [107]3 years ago
5 0

Answer:

x = 2.4 cm

Step-by-step explanation:

HOPE I HELPED EVEN IF I ANSWERED MONTHS LATER :D

liq [111]3 years ago
4 0
The answer is “C” x=2.4. 1.2/.96=3.0/x. That equals 1.2x=2.88. 2.88/1.2=2.4
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Answer:

(4 ,26)

Step-by-step explanation:

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Wastewater is filling barrels at the rate of 11 quarts per hour. The recycling facility picks up 120 full barrels on each trip,
givi [52]
120 barrels x 12 quarts per barrel = 1440 total quarts

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Determine the end behavior of the function: f(x)= -3x*4
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A Cell Phone company sells cellular phones and airtime in a State. At a recent meeting, the marketing manager states that the av
GarryVolchara [31]

Answer:

The null hypothesis is rejected.

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This is a hypothesis test for the population mean.

The manager claims that the average age of customers is 40 years. As this is an equality, we will test if the average age differs from 40. If the null hypothesis failed to be rejected, the claim of the manager is right.

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t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{38-40}{0.99}=\dfrac{-2}{0.99}=-2.02

The degrees of freedom for this sample size are:

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This test is a two-tailed test, with 49 degrees of freedom and t=-2.02, so the P-value for this test is calculated as (using a t-table):

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As the P-value (0.049) is smaller than the significance level (0.05), the effect is  significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the average age of the customers differs from 40 years.

3 0
3 years ago
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