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Mrrafil [7]
4 years ago
5

Select the correct answer. Which statement about an electromagnet is true? A. It doesn’t function without a source of current. B

. The core is made from a nonmagnetic material. C. It uses moving magnets to create an electric field. D. It creates a permanent and strong magnetic field.
Mathematics
1 answer:
zubka84 [21]4 years ago
3 0

Answer:I’m going to say it’s A I apologize if it’s wrong

Step-by-step explanation:

Magnets are magnetic fields that compares together when attracted close to one another so that’s Why I’m choosing A because it’s close to what I think

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If f and g are functions of time, and at time t = 2, f equals 5 and is rising at a rate of 6 units per second, and g equals 7 an
Yuliya22 [10]

Answer:

f/g at t =3 will be 9/8

d/ddx(f(x)/g(x))=f'(x)d(x)-f(x)g'(x)/(g'(x))^2

rate of change=(6*8)+(9*9)/9^2

rate of change =43/27=1.5925

8 0
3 years ago
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Two integers have a sum of -11 and a difference of 5. What are the two
Rudiy27

Answer:

x = -3

y = -6

Step-by-step explanation:

x+y = -11

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x+y+x-y= -6

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3 0
3 years ago
I had $88. then i earned $29 walking dogs. after I spent money for concert tickets, I have $74 remaining. estimate how much mone
klemol [59]

Answer:

$43

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7 0
4 years ago
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V=1/3Ah<br>make h the subject of the formula when A=15 and h= 7​
ella [17]

Answer:

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3 0
3 years ago
How do you find the percent change?
antoniya [11.8K]
Hello!!
To calculate the percentage increase<span>: First: work out the </span>difference<span> (</span>increase<span>) between the two numbers you are comparing. Then: divide the </span>increase<span> by the original number and multiply the answer by 100. If your answer is a negative number then this is a </span>percentage<span> decrease.
</span>let me know if u have anymore questions!:)
7 0
3 years ago
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