All categories

3 years ago

In a parallel circuit, ET = 240 V, R = 330 Ω, and XL = 420 Ω. What is Z?

Mathematics

1 answer:

denis-greek [22]3 years ago

6 0

Answer:

Z = 258Ω

Step-by-step explanation:

There are two methods of solving this question,

First method

Z = ( RXL)/ sqr rt ( R²+XL²)

Z= (330 Ω × 420 Ω)/ sqr rt ( 330 Ω² + 420 Ω²)

Z = 138600 Ω /534

Z = 259 Ω

THE second complete method is given in attachment below

You might be interested in

EXPERTS HELP!! Jane was playing a game with her sister, Sally. Jane was down by 7. After her next turn, she was down by 3. Which

max2010maxim [7]

............Te he answer is C

6 0

2 years ago

Read 2 more answers

Evaluate 3x^2+5, when x= -5 and y= -9

dangina [55]

Step-by-step explanation:

$3x {}^{2} + 5$

$(3 \times - 5) {}^{2} + 5$

$- 15 {}^{2} + 5$

$225 + 5$

$230$

3 0

2 years ago

1. Under absorption costing, how much fixed manufacturing overhead cost is included in the company's inventory at the end of las

Jobisdone [24]

Answer:

$5,200 a fixed manufacturing overhead cost is included in the company's inventory at the end of last year.

Income Statement is Prepared in an MS Excel File Attached With this answer Please find it.

Step-by-step explanation:

Fixed Manufacturing Overhead = Total Fixed manufacturing Overhead x Units in ending inventory / Units produced

Fixed Manufacturing Overhead = 65,000 x 20 / 250 = $5,200

File Attached.

There is a Difference of $5,200 in net operating income between the two costing methods. The amount of fixed asset assigned to closing inventory.

Download xlsx

3 0

3 years ago

Stuart's bank account had a balance of - $54.19 last month. This month he won a cash prize of $70.82 for winning a competition.

Alenkinab [10]

If Stuart starts with -$54.19 then gains $70.82, you have to add the gained amount to the origin amount. Since the origin amount is negative, you can also subtract the origin amount from the gained amount to find the amount left at the end of the month.

Add 70.82 to -54.19

-54.19 + 70.82 = 16.63

Alternative method:

First, subtract 54.19 from 70.82.

70.82 - 54.19 = 16.63

Add 54.19 to -54.19, bringing you to 0.

-54.19 + 54.19 = 0

Now add the remaining 16.63.

0 + 16.63 = 16.63

<h2>Answer:</h2>

Stuart will have $16.63 at the end of this month.

7 0

2 years ago

A simple random sample of size nequals10 is obtained from a population with muequals68 and sigmaequals15. (a) What must be true

valentina_108 [34]

Answer:

(a) The distribution of the sample mean ( $\bar x$ ) is N (68, 4.74²).

(b) The value of $P(\bar X$ is 0.7642.

Step-by-step explanation:

A random sample of size n = 10 is selected from a population.

Let the population be made up of the random variable X.

The mean and standard deviation of X are:

$\mu=68\\\sigma=15$

(a)

According to the Central Limit Theorem if we have a population with mean μ and standard deviation σ and we take appropriately huge random samples (n ≥ 30) from the population with replacement, then the distribution of the sample mean will be approximately normally distributed.

Since the sample selected is not large, i.e. n = 10 < 30, for the distribution of the sample mean will be approximately normally distributed, the population from which the sample is selected must be normally distributed.

Then, the mean of the distribution of the sample mean is given by,

$\mu_{\bar x}=\mu=68$