3 years ago

An apartment building has 9 floors. There are 9 apartments per floor. How many apartments are in the building?

Mathematics

1 answer:

kaheart [24]3 years ago

3 0

Answer:

81 apartments are in the building

Step-by-step explanation:

9 × 9 = 81

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Step-by-step explanation:

because they have different gradients

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3 years ago

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3 years ago

Find the length of the hypotenuse of a right triangle whose legs are 3 and square root of 2.

madreJ [45]

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sqrt2^2 = 2
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3 years ago

Which line passes through the point (10, -1)and has a slope of -2

77julia77 [94]

y = mx + b

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Hope this helps! ;)

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3 years ago

A television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If

Alinara [238K]

Answer:

Test statistic z= 1.708

Step-by-step explanation:

given that a television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If this is to happen, it will have to move one of its most viewed shows to another slot.

Sample size n = 827

Sample proportion p = $\frac{438}{827} \\=0.5297$

$H_0: p =0.5\\H_a: p >0.5$

(right tailed test)

This is because they would be interested if more than half viewers are ready for the change

Test statistic = Z = p difference/std error

p difference = 0.0297

Std error = $\sqrt{\frac{pq}{n} } \\=\sqrt{\frac{0.5*0.5}{827} } \\=0.0174$

Z =1.708

p valu e= 0.9562

Since p >0.05 we fail to reject H0

Test statistic z= 1.708

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3 years ago