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3 years ago

One-half the sum of x,y, and z

1 answer:

3 0

The keyword is "sum" which tells you x, y, and z are being added. One half of the sum means that the sum of the three numbers is going to be divided by 2.

x + y + z
------------
2

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A transformer increases the input voltage from 12V to 12,000V. What is the ratio of the number of wire turns on the primary coil

erma4kov [3.2K]

Answer:

$\frac{n_p}{n_s}=\frac{1}{1000}$

Step-by-step explanation:

Given voltage of primary coil is $V_p=12V$

And voltage of secondary coil is $V_s=12,000V$

A transformer is a device that contains primary and secondary coil. These coils are mounted on soft iron. The change in voltage depends upon the number of turns of primary coil $(n_p)$ and secondary coil $(n_s)$ .

Following equation represents the relation between them.

$\frac{V_s}{V_p} =\frac{n_s}{n_p}\\\\\frac{12,000}{12}=\frac{n_s}{n_p}\\\\1000=\frac{n_s}{n_p}$

Then, ratio of the number of wire turns on the primary coil to the number of turns on the secondary coil is

$\frac{n_p}{n_s}=\frac{1}{1000}$

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Chuge%5Ccolor%7Byellow%7D%5Cunderline%20%5Ccolorbox%7Bviolet%7D%20%7B%5Ccolor%7Bred%7D%7BQUE

larisa [96]

Explanation:

Volume of rectangular prism: Length * Width * Height

Solve:

1)

Volume: 9 * 9 * 9 = 9³ = 729 cm³

2)

Volume: 7 * 3 * 2 = 42 m³

3)

Volume: 7 * 7 * 7 = 7³ = 343 cm³

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2 years ago

What is 56 Divided by 1456

Rudik [331]

Answer:

0.03846153846 or 2/52

Step-by-step explanation:

Just keep simplifying

56/1456=

8/208=

2/52=

7 0

3 years ago

Sceenshot please answer it math problem

9966 [12]

Answer:

surface area is i think 251.2

and the volume is 301.44

the surface area formula is A=2πrh+2πr²

and the volume formula is V=πr²h

hope it helps

Step-by-step explanation:

can I have brainliest if its right

8 0

2 years ago

Helpppp I’m marking brainliest

Sav [38]

Answer:

y=x+6

tell me if its right

8 0

3 years ago

Read 2 more answers