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Vlad [161]
2 years ago
12

What causes a magnetic field?

Mathematics
1 answer:
DiKsa [7]2 years ago
6 0

Answer:

When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field. The piece of iron has become a magnet. Some substances can be magnetized by an electric current.

Step-by-step explanation:

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What do u do when the question says what is an area of the rectangle Like
Anastaziya [24]

Answer:

multiply

Step-by-step explanation:

Area is measured in square units such as square inches, square feet or square meters. To find the area of a rectangle, multiply the length by the width.

6 0
2 years ago
3 ft<br>3 ft<br>O What is the surface area of the 3-dimensio<br>shape?
Elanso [62]
The answer may be c but if not i am super sorry!!
4 0
2 years ago
Points 2
jonny [76]

Answer:

a = -1,6 b = 1,11 c = 4,11 .

4 0
2 years ago
PLEASE HELP ASAPPPLPPPPPPPPP
tankabanditka [31]

Answer:  For part A, the formula for the employee's pay is  <em><u>P</u></em>ay = hourly <em><u>r</u></em>ate times <em><u>h</u></em>ours .  P = r × h  The equation is P = 13h   To find how many hours are required to earn a given amount, fill in given values and solve for the missing variable .  7800 = 13h   h= 7800/13    600 hours needed.

For part B, the formula for this employee's pay is  <em><u>P</u></em>ay = <u><em>B</em></u>onus + hourly <em><u>r</u></em>ate times <em><u>h</u></em>ours .   P = b + rh

330 = 90 + r(24)    330 - 90 = 24r .  240 = 24r    240/24 = r . r = 10

The employee's pay rate is $10 per hour.

8 0
3 years ago
Please help me with the work because i dont understand this.
Alexandra [31]

Answer:

The dimension are 20 ft by 15 ft

Step-by-step explanation:

A = l*w

P = 2(l+w)

we know the area = 300

and the perimeter = 70

300 = lw

70 = 2 (l+w)

divide by 2

70/2 = 2/2 (l+w)

35 = l+w

subtract w

35-w = l+w-w

35 -w =l

substitute this into 300 = lw

300 = (35-w) * w

distribute

300 = 35w - w^2

subtract 300 from each side

0 = -w^2 +35w - 300

divide by -1

0 = w^2 - 35w + 300

factor

0= (w-15) (w-20)

using the zero product property

w-15 = 0   w-20 =0

so w=15, w=20

if w=15   then l=35 -w  l = 35-15   l=20

if w=20  then l=35-w   l= 35-20 = 15


The dimension are 20 ft by 15 ft

7 0
3 years ago
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