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alukav5142 [94]
3 years ago
11

What three ways are electromagnets different than magnets?

Mathematics
1 answer:
4vir4ik [10]3 years ago
6 0
1.The strength of an electromagnet<span> can be adjusted by the amount of electric current allowed to flow into it. 
2. Electromagnets are much stronger than regular magnets
3. Electromagnets use coils while regular magnets use magnetic materials like Iron.

Brainliest?</span>
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-4h - 6 = 22 what does h equal
daser333 [38]
-4h -6 = 22
To solve this, we need to get -4h by itself and then simplify.
-4h -6 = 22
Add 6 to both sides.
-4h = 28
Divide both sides by -4.
h = -7.

I hope this helps!
8 0
4 years ago
What graph represents f(x) = 0.5(4)x
vampirchik [111]

Answer:

See attached picture

Step-by-step explanation:

The equation f(x) = 0.5(4)x is most likely f(x) = 0.5(4)^x. This is an exponential. To graph the function, test the points -1, 0, and 1. Then connect.

f(x) = 0.5(4)^{-1}=0.5(\frac{1}{4}) = \frac{1}{8}

f(x) = 0.5(4)^{0}=0.5(1) = 0.5

f(x) = 0.5(4)^{1}=0.5(4) = 2

5 0
3 years ago
Eric needs 1/2 deck of playing cards for a magic trick. He only has 2/7 of a deck. What fraction of a deck does Eric still need?
tatyana61 [14]

Answer: Eric still needs \frac{3}{14} of a deck.

Step-by-step explanation:

You know that:

- Eric need 1/2 deck of playing cards.

- Eric has 2/7 of a deck.

Therefore, to find the fraction of a deck that Eric still needs, you must subtract 1/2 and 2/7:

- Find the least common multiple of the denominators:

2=2*1\\7=7*1

LCM=2*7*1=14

- Now, you can make the subtraction:

\frac{(7*1)-(2*2)}{14}=\frac{7-4}{14}=\frac{3}{14}

Therefore, he still needs \frac{3}{14} of a deck.

4 0
3 years ago
Which best describes the system of equations? y = x 2 -3x 3y = 6
Kitty [74]

Answer:

Inconsistent

Step-by-step explanation:

We will use the substitution method for this.

y = x + 2

-3x + 3y =6

-3x + 3(x+2) = 6

-3x + 3x + 2 = 6

2 ≠ 6

2 does not equal 6, so this would be inconsistent and on a graph parallel lines.

8 0
4 years ago
Read 2 more answers
I WILL GIVW CROWN NEEP HELP ASAP
cricket20 [7]

Answer:

C. between 5 and 6 days

Step-by-step explanation:

divide 1611 by 305 and the answer is 5.28196721311. meaning it will take a little over 5 days to get to wherever he is going.

4 0
3 years ago
Read 2 more answers
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