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sergij07 [2.7K]

3 years ago

8

A class has 18 students. The teacher asks how many students in the class have pets. If 5/9 of the students have pets, how many s

tudents in the class have pets?

1 answer:

Masja [62]3 years ago

4 0

10 students would have pets because 10/18 is simplified to 5/9 I think

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Surface area and volume

Wittaler [7]

Triangular prism
length of slanted side:
sqrt(3^2 + 4^2) = 5
SA = 2(1/2)(8)(3) + 8(12) + 2(5)(12) =240
V = (1/2)(8)(3)(12) = 144

cuboid
SA = 2(7x6) + 2(7x5) + 2(6x5) = 214
V = 7x6x5 = 210

6 0

3 years ago

Find a Job !!20 POINTS!!

NeTakaya

Cashier at target would be the best option
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5 0

2 years ago

Read 2 more answers

Voltage sags and swells. The power quality of a transformer is measured by the quality of the voltage. Two causes of poor power

zysi [14]

Answer:

a

$z-score = 1.57$

b

$z-score_s = -3.36$

Step-by-step explanation:

From the question we are told that

The sample size is n = 103

The sample mean of sag is $\= x_1 = 353$

The sample mean of swells is $\= x_2 = 184$

The standard deviation of sag is $s_1 = 30$

The standard deviation of swells is $s_2 = 25$

The number of swell for a randomly selected transformer is k = 100

The number of sag for a randomly selected transformer is c = 400

Generally the z-score for the number of swells is mathematically represented as

$z-score_s = \frac{ k - \= x_2}{s_2}$

=> $z-score_s = \frac{ 100- 184}{25}$

=> $z-score_s = -3.36$

Generally the z-score for the number of sags is mathematically represented as

$z-score = \frac{ c - \= x_1}{s_1}$

$z-score = \frac{ 400 - 353}{30}$

$z-score = 1.57$

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4 years ago

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Pani-rosa [81]

Answer: uhhhhhh pass

Step-by-step explanation:

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4 years ago

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Ivanshal [37]

Answer:

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3 years ago