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3 years ago

Is it a translation,rotation,reflection or a dilation?

Mathematics

1 answer:

pickupchik [31]3 years ago

7 0

That would be a translation. I know this because it didn't reflect, rotate or go down in size so it's not a dilation either. That leaves translation because it only moved!

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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

Helppppppppppoppppppppppppppppppp

NARA [144]

I think the answer would be the last one. a cylinder with radius 4 units.

3 0

3 years ago

The elevation of city a is 80 feet below sea level, the elevation of city c is 16 feet below sea level. The elevation of city D

tekilochka [14]

I am almost positive that the answer could be 8 feet below sea level

6 0

3 years ago

(-0.2)(0.4 I don’t know how to do this question

Zepler [3.9K]

Answer:

-0.08

Step-by-step explanation:

Multiply.

-0.2

x 0.4

_____

0 0 8

Each number you started out with has 1 space between the last number and the decimal, so your final answer will have 2 spaces.

Also, since you multiplied a negative and a positive, your final answer will be negative.

6 0

3 years ago

The length of a rectangle is four more than triple the width. if the perimeter is 120 inches, find the dimensions.

mezya [45]

120/2=60 (sum of both lengths)
4x+4=60
4x=56
x=14

length=46
width=14

5 0

2 years ago