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3 years ago

Can someone help me?

Mathematics

2 answers:

maria [59]3 years ago

6 0

The answer is 5.
10/2=5
Rise over run :)

o-na [289]3 years ago

4 0

The answer is 5
10/2=5

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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:

$z-score = 1.57$

$z-score_s = -3.36$

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

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

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

$z-score = 1.57$

4 0

3 years ago

ILL MARK BRAINLIEST HELP!!!!

stepan [7]

Answer:

Step-by-step explanation:

let EFH = x

Let GFH = y

x + y = 90

x = 2y

Substitute: 2y + y = 90

3y = 90

y = 30

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3 years ago

Wich is greater 500 seconds or 8 minutes

ohaa [14]

500 seconds is greater. Since there are 60 seconds in one minute you would multiply 60 and 8.
60x8= 480

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If c = 4 and d = 5, find c:d.<br><br> 1:5<br> 4:5<br> 5:4

nadya68 [22]

The answer would be the second choice. 4:5

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Hitman42 [59]

So,

We can notice that the graph of g, is translated 2 units to the left and 4 units up. We can express these changes with the following equation:

$g(x)=(x+2)^2+4$

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1 year ago