log x - log 6 = 2 log 4

Answer:

Permanent Magnets and Electromagnets: What are the Differences? A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. ... An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it.

Step-by-step explanation:

Electromagnets differ from regular magnets in that they require an electric current to generate a magnetic field.

Regular magnets, also known as permanent magnets, possess an inherent magnetic field due to the alignment of their atomic or molecular structure. They do not require an external power source.

On the other hand, electromagnets are made by wrapping a coil of wire around a magnetic core and passing an electric current through the wire. The electric current creates a magnetic field, and the strength of the magnetic field can be controlled by varying the current.

One key advantage of electromagnets is their ability to be turned on and off by controlling the electric current. This feature allows for a wide range of applications, such as in electric motors, generators, speakers, magnetic levitation systems, and more, where the magnetic field needs to be controlled or modulated. In contrast, regular magnets have a constant magnetic field that cannot be easily manipulated.

To know more about Electromagnets:

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Answer:

Step-by-step explanation:

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.

Answer:

D

Step-by-step explanation:

Answer:

x = -56

Step-by-step explanation:

x4 on both sides to get rid of the fraction, then +20 on both sides to get rid of -20 on the left side, then you get x = -56

Answer: $863.95 I do believe

Step-by-step explanation:

Answer:

Y and Z because just move the shape side ways and u can find the corresponding side.

Answer:

The relationship is *11

Step-by-step explanation:

any number times eleven will be a double of itself

for example:

2*11=22

5*11=55

4*11=44

and so on

Answer:

11

Step-by-step explanation:

2(3)+5

6+5

11

Answer:

11

Step-by-step explanation:

2b+5, when b is 3

substitute 3 into 2b+5

2(3)+5

6+5 =11

Answer:

50.8 degrees

Step-by-step explanation:

cos(x)=12/19

[tex] = (2 {n}^{2} - 5n - 6) + ( - {n}^{2} - 3n + 11)[/tex]

[tex] = 2 {n}^{2} - 5n - 6 - {n}^{2} - 3n + 11[/tex]

[tex] = 2 {n}^{2} - {n}^{2} - 5n - 3n - 6 + 11[/tex]

= (n²-8n+5)→Answer

I hope that it answer your question...

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Answer:

x=50

y=25

Step-by-step explanation:

So for this triangle we can use trig. To find side x (the hypotenuse) we can do sin60 degrees. *remember SOHCAHTOA, so sin is opposite over hypotenuse.

sin60degrees=(25 * sqrt of 3)/x

multiply each side by x to get xsin60degrees=25*sqrt of 3. Then divide both sides by sin60degrees. Plug that in a calculator and you should get 50.

For side y, well you can use the characteristics of 30-60-90 triangles and by doing this we know that the short leg of this type of triangle is HALF of the hypotenuse and half of 50 is 25. If you didn't know this you could still use the cos of 60 degrees and get 25 as well.

Answer:

3380yd

Step-by-step explanation:

65x13x4

Answer:

i dont know the answer may be search on chrome

Answer:

17 x 10³

Step-by-step explanation:

Standard form is a way of writing down very large or very small numbers easily. 10³ = 1000, so 4 × 10³ = 4000 . So 4000 can be written as 4 × 10³ . This idea can be used to write even larger numbers down easily in standard form.

Answer:

Evan will have to walk 7 blocks

Step-by-step explanation:

Evan will have to walk 7 blocks because he gets $5 from picking up the dog, so subtract 5 from 26 to get 21. Next, you want to divide 21 by 3 to get 7 because $3 a block and you need to find how many blocks he needs to do.

Answer:

The fourth choice, Pink, is the correct answer.

Step-by-step explanation:

The first two options intersect, therefore the intersection is the solution. The third set of lines may seem like one line, however since we are dealing with two linear equations, it can be presumed that those are two lines on top of one another, therefore it has infinite solutions. The last option remaining is Pink, in which the lines are parallel and therefore will never intersect, making them have no solution.

Answer:

AC, CB

Step-by-step explanation:

A segment needs two endpoints. The third answer is the only one that can contain two segments, other answers contain single points.

Answer:  6:5 ; 18:15 ; 36:30

Step-by-step explanation:

6/5 = x/15

5x = 6(15)            use cross multiply

5x = 90

x = 18

6/5 = 36/x

6x = 5(36)            use cross multiply

6x = 180

x = 30

Answer:

Answer below

Step-by-step explanation:

For every 6 taxis, there are 5 busses

if there are 15 busses, thats 3 sets of 5

6x3 is 18. so for every 15 busses, there are 18 taxis

If there are 36 taxis, thats 6 sets of 6

since there are 5 busses for every 5 taxis

5x6 is 40

for every 30 busses, there are 36 taxis

Answer:

58cm

Step-by-step explanation:

15+14+5+8+6=48

missing side = 15-5 =10

48+10=58

Answer:

Step by step explanation

6= 6/1

Reciprocal= 1/6

13= 13/1

Reciprocal= 1/13

1/2

Reciprocal= 2/1

Answer:

For 6 it is 1/6 for  13 it is  1/13   and for  1/2  it is 2

Step-by-step explanation:

Answer:

54.8° to the nearest tenth of a degree

Step-by-step explanation:

m∠A = arcsin 35/37 = 71.075...

m∠B = arctan 7/24 = 16.2602...

m∠A - m∠B = 71.075 - 16.260 = 54.8° to the nearest tenth of a degree

Answer:

-15 + -3 = -18

Rob owes his father $18.

Step-by-step explanation:

Rob has to pay back the same amount of money that he took. Since he took 15 dollars, he has to give back 15 dollars which makes the 15 negative. The same goes for the 3 in the equation.

To find out the total amount Rob has to pay back, we have to add -15 and -3, which is -18.

Answer:

3/5

Step-by-step explanation:

We can find ∅ by using the tangent function since we have the opposite and adjacent sides of ∅.

tan(∅)=1/2

tan^-1(tan(∅))=tan^-1(1/2)

∅=26.57

Since we are looking for cos(2∅), then we have cos(2(26.57))=cos(53.14)≈0.6

So the exact value is 3/5

Answer:

7

Step-by-step explanation:

Answer:

I think it's C

Step-by-step explanation:

Answer:

(4, 1)

Step-by-step explanation:

Since there's a graph, the answer is the intersection: (4, 1)

But here's the cancellation method for future use :)

Answer:

daisies

Step-by-step explanation:

Answer:

153

Step-by-step explanation:

break it up in pieces 6x12 + 4x4 + 13x5 = 153

Answer:

Each juice cost $1.48

Answer:

the answer is 7/10

Step-by-step explanation: