I REALLY NEEP HELP RN

Which of the following is the difference between a permanent magnet and an electromagnet?


An electromagnet can be turned on and off, but a permanent magnet cannot.


A permanent magnet has a north and south pole, but an electromagnet does not.


Their strength can be changed.

Answer: x = 23

Steps:  

3−4=2+19

= 3−4+4=2+19+4

= 3=2+19+4

= 3=2+23

= 3−2=2+23−2

= 1=2+23−2

= =2+23−2

= =23

Hope this help! :)

The value of x is 23.78 cm and this can be determined by using the cosine function which is an important trigonometric function.

Given :

A right triangle. The hypotenuse is labeled as 25 centimeters. The base is labeled as x.

Using the trigonometric functions the value of x can be determined. The cosine function can be used in order to determine the value of 'x'.

The cosine function is the ratio of the base to the hypotenuse. It is given by:

[tex]\rm cos\theta=\dfrac{Base}{Hypotenuse}[/tex]

Now, put the values of the base, hypotenuse, and the angle [tex]\theta[/tex] in the above equation.

[tex]\rm cos 18^\circ = \dfrac{x}{25}[/tex]

[tex]\rm x = cos18^\circ \times 25[/tex]

x = 23.78 cm

So, the correct option is D).

For more information, refer to the link given below:

https://brainly.com/question/10283811

Answer:

AB = 3

BC = 2/5

CD = 3

DA = 2/5

Hope this helps!

Answer:

2

Step-by-step explanation:

-4 - (-6)

-4 +6 (- - = +)

=2

Answer:

2 ft

Step-by-step explanation:

Answer:  

36

Step-by-step explanation:

You can see that the rectangle can be broken into a square to match the top square.  Use 3^2 to get 9 and multiply by two to get the area of both squares, 18.  Now use L*W to find the area of the rectangle, you should get 18 as well.  Add to get 36.  

Answer:

90?

Step-by-step explanation:

Answer:

C. because it is 5 units to the left of 3 on a horizontal number line

Step-by-step explanation:

Draw a number line, mark the number and 3 and count 5 steps backwards all the way to -2.

Also, a negative and a positive make a negative, therefore 3-5=-2.

A cheerful teen willing to help,

wishing you a splendiferous day or night ahead,

stay salty...

Answer:

so 238 rounded up is 240

244 rounded up is 240

295 rounded up is 300 so you can just do the rest

Step-by-step explanation:

Answer:

A rise in 13.0%

Step-by-step explanation:

10*9*4.6=414

414-360=54

54/414~~13.0%

Answer:

Step-by-step explanation:

Exact volume is:

The difference between real and estimate is the error:

Percent error is:

Answer:

x = − 1 ± i

Step-by-step explanation:

Answer:

Step-by-step explanation:

The idea of the square root of a number is that the square of it gives the number. Then the square of the square root of 16 will give 16.

The middle line of your problem statement tells you that the square of 16^(1/2) gives 16. This lets you interpret the meaning of 16^(1/2) as the same thing as the square root of 16.

  16^(1/2) = √16 . . . . in radical form

_____

Additional comment

The index of the radical can be seen to be the denominator of the corresponding rational exponent. Of course, the index 2 in a square root symbol is "understood", rather than shown explicitly.

Using similar logic, for example, we can write ∛8 = 8^(1/3).

Wt.f, no te entiendo nada.

Answer:

That is simple but instead of asking strangers for help that could make you get it wrong ask your parents for help.

Step-by-step explanation:

Step-by-step explanation:

the slope of a line function is always the factor of x.

in our case here : 1/5

it is the ratio y/x indicating how many units y changes, when x changes a certain amount of units.

in our case that means y increases by 1 for every increase of x by 5.

now, the perpendicular slope simply changes x and y upside-down and flips the sign.

so, here the perpendicular slope is : -5/1 = -5

the line function looks therefore like

y = -5x + b

b is the y-intercept, and we get it by using the coordinates of the point for x and y :

-8 = -5×0 + b = b

so, the full line function is

y = -5x - 8

Answer:

correct answer is in the picture attached

Answer:

f(1) = 7

f(4) = -2

Step-by-step explanation:

f(x) = -x² + 2x + 6

Put x = 1

f(1) = -(1)² + 2(1) + 6

f(1) = -1 + 2 + 6

f(1) = 1 + 6

f(1) = 7

Now, Put x = 4

f(4) = -(4)^2 + 2(4) + 6

f(4) = -16 + 8 + 6

f(4) = -16 + 14

f(4) = -2

By comparing the two values, we get to know that f(1) is positive while f(4) is negative.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

C

Step-by-step explanation:

Brainlist?

:)

Answer:

Yes.

Step-by-step explanation:

If you input 6 as the x value and 7 as the y value, the total is much greater than 7.

Answer: p= -3

p=-5/2=-2.500

Step-by-step explanation:

plss be brianleist

Answer:

5 po sagot s

Step-by-step explanation:

pa brainless po pls 1x lng

If she drives fast, he gets mad.

Hope this helps! :)

Answer:

288. your answer is correct.

Step-by-step explanation:

576 / 2 = 288

Answer:

f(x)=-x+3

Step-by-step explanation:

contains (0, 3) and (3, 0)

slope = (3-0)/(0-3)=3/-3=-1

f(x)=-x+b

b=3

f(x)=-x+3

Answer:

16 feet squared

Step-by-step explanation:

We'll use the formula for finding the area of a triangle:

area = [tex]\frac{1}{2}[/tex] of the base times the height

First, we'll find [tex]\frac{1}{2}[/tex] of the base. Our base is 4 feet, and half of 4 feet is 2 feet. Now, we have to multiply that by the height. The height is 8 feet, so we have to multiply 8 feet by 2 feet. 8 times 2 is 16, and feet times feet gives us feet squared. So we have 16 feet squared as our final answer.

Hopefully that was helpful! Let me know if you have any more questions.

The  area of a right triangle with a base of 4 feet and a height of 8 feet is 16 square feet

The formula for calculating the area of a triangle is expressed as;

A = 0.5bh

where

b is the base of the triangle

h is the height of the triangle

Given the following

b = 4feet

h = 8feet

Substitute

A = 0.5 * 4 * 8
A = 16 square feet

Hence the  area of a right triangle with a base of 4 feet and a height of 8 feet is 16 square feet

Learn more on area of triangle here: https://brainly.com/question/17335144

Answer:

9

Step-by-step explanation:

If u kids can't multiply look on a multiplication table lol

Answer:

correct answer is -8, explained in picture attached

Answer:

-100

Step-by-step explanation:

If the dot is a multiplication sign, the answer is -100.

slope-intercept form: y = mx + b

In your case: y = 2/3 x + 1