2 years ago

7. The ordered pairs ((-1,-9), (5,9). (7.15)) are included in which function? 14

Mathematics

1 answer:

Sholpan [36]2 years ago

6 0

Answer:

C. y=3x-6

Step-by-step explanation:

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Simplify -4/5 divided by 3/-2

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The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th

marusya05 [52]

Answer:

The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is $\pi=0.29$

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

$\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224$

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

$z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25$

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3 years ago

If a triangle has angles 42 and 35 degrees , what is the measure of the third angle ?

alekssr [168]

Answer:

Triangle = 180 Degrees, so 77.

Step-by-step explanation:

42+35+x=180

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