Ask question

Ask question

All categories

olya-2409 [2.1K]

4 years ago

13

Lidia makes a graphic organizer to compare temporary magnets with permanent magnets.Which labels belong in the regions marked X

and Y?a. X: Maintains magnetic properties in the presence of another magnetY: Is made from magnetically hard ferromagnetic materialb. X: Repels or attracts other magnetsY: Attracts iron objectsc. X: Maintains magnetic properties in the presence of another magnetY: Is made from magnetically soft ferromagnetic materiald. X: Attracts or repels iron objectsY: Attracts other magnets

2 answers:

kkurt [141]4 years ago

9 0

Answer:

The answer is C.

Step-by-step explanation:

Both temporary and permanent magnets have below common specifications:

-Repels or attracts other magnets

-Attracts iron objects

Therefore, choices <u>B</u> and <u>D</u> is wrong.

Maintaining magnetic properties in the presence of another magnet and made from magnetically hard ferromagnetic material are both specification of permanent magnets. Thus, A is also a wrong choice.

So the answer is C.

Masja [62]4 years ago

6 0

Answer:

B. X: Maintains magnetic properties in the presence of another magnet

Y: Is made from magnetically hard ferromagnetic material

Step-by-step explanation:

on edge

You might be interested in

Pls pls pls pls pls help

Arturiano [62]

Answer:

$y=\frac{1}{2}$

Step-by-step explanation:

$4(y+1)= \frac{3}{1-y}$

$4y+4= \frac{3}{1-y}$

$(4y+4)(1-y)= 3$

$4y(1-y)+4(1-y)=3$

$4y-4y^{2} +4-4y=3$

$-4y^{2}=3-4$

$4y^{2}=1$

$y^{2} = \frac{1}{4}$

$y=\sqrt{\frac{1}{4} }$

$y=\frac{1}{2}$

7 0

3 years ago

Use the quadratic formula to determine the exact solutions to the equation <br> 6x^2 + 4x - 3 = 0

mezya [45]

To solve quadratics, the most correct and effective way, in my opinion, is the quadratic formula:

$x={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}.$ <span><span>

Plugging it in, we get:

</span></span> $\frac{-4\pm \sqrt{16+72} }{12} = \frac{-4\pm 2\sqrt{22}}{12} = \frac{-2\pm \sqrt{22} }{6}$

So the final answer is:

$\frac{ \sqrt{22}-2 }{6}$ and $\frac{-2- \sqrt{22} }{6}$

5 0

3 years ago

What is the equation of the line that passes through the point (-3,-6) and (2,-2)

quester [9]

Answer:

$y=\frac{4}{5}x-\frac{18}{5}$

Step-by-step explanation:

Hi there!

We want to find the equation of the line that passes through the point (-3, -6) and (2, -2)

There are 3 ways to write the equation of the line:

In slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept

In point-slope form, which is $y-y_1=m(x-x_1)$ , where m is the slope and $(x_1,y_1)$ is a point

In standard form, which is ax+by=c, where a, b, and c are integer coefficients, but a and b cannot be zero, and a cannot be negative

The easiest way would either be slope-intercept or point-slope form, but let's write the equation in slope-intercept form, since it's the most common way

So we'll need to find the slope

The formula for the slope calculated from 2 points is $\frac{y_2-y_1}{x_2-x_1}$ , where $(x_1, y_1)$ and $(x_2, y_2)$ are points

We have everything needed to find the slope, let's just label the values of the points to avoid any confusion:

$x_1=-3\\y_1=-6\\x_2=2\\y_2=-2$

Now substitute these values into the formula. Remember that m is the value of the slope:

m= $\frac{y_2-y_1}{x_2-x_1}$

m= $\frac{-2--6}{2--3}$

Simplify the fraction:

m= $\frac{-2+6}{2+3}$

Add the numbers together:

m= $\frac{4}{5}$

So the slope of the line is 4/5

Let's plug it into the formula y=mx+b, since we now know the value of m

y= $\frac{4}{5}$ x+b

Now let's find b

As the equation passes through both (-3, -6) and (2, -2), we can use either point to help solve for b

Either point works, but let's take (2, -2) for instance

Substitute 2 as x and -2 as y

-2=4/5(2)+b

Multiply

-2=8/5+b

subtract 8/5 from both sides

-18/5=b

Now substitute -18/5 as b into the equation:

$y=\frac{4}{5}x-\frac{18}{5}$

Hope this helps!

3 0

3 years ago

What an equation for the translation of y=|x|. 13 unites down

Katen [24]

Answer:

$\large\boxed{y=|x|-13}$

Step-by-step explanation:

In this question, we're trying to make a new equation.

We know that:

We translated 13 units down

When it says down, we know that the y intercept would be changing.

Since there werer no y intercept or beginning point to start with, we know that before we translated, it was at 0.

Since we went down 13 units, we're subtracting 13 units from our original spot.

This means that we're going down -13.

When you put that into an equation, it should look like this:

y= |x| - 13

<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>

8 0

4 years ago

If all the girls danced but only two-thirds of the boys danced how many children danced in all

umka2103 [35]

5/6 of the children
I feel as if there is information missing from the question though such as quantities.

3 0

3 years ago

Read 2 more answers