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3 years ago

Find the slope and the y-intercept for y=-5x

Mathematics

1 answer:

aleksley [76]3 years ago

4 0

Slope= -5
Y-intercept= 0

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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

Solve for t. -t = 9(t-10) pls help

g100num [7]

Step-by-step explanation:

-t = 9(t-10)

-t = 9t - 90

90 = 9t + t

90 = 10t

90 ÷ 10 = t

9 = t

6 0

3 years ago

Pls help 25h²- 16t² factorise it

noname [10]

Answer:

(5h-4t)(5h+4t)

Step-by-step explanation:

25h² - 16t²

adding and subtracting 20ht from it (√25 and √16 = 5x4 = 20):

25h² + 20ht - 20ht -16t²

factor:

(5h-4t)(5h+4t)

8 0

3 years ago

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Olympic pools hold about 660, 334 gallons, how many liters is that?

Scrat [10]

Answer:

I think it's 2.5 million liters

Step-by-step explanation:

I asked my mom. And sister but my sister got a different answer but I took my mom answer.

8 0

2 years ago

Find the measures of w, x, and y.

natima [27]

hope that helps ;)

5 0

3 years ago

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