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Sergeeva-Olga [200]
3 years ago
6

List three ways you can use an electric current. Describe the energy Chang that takes place

Mathematics
1 answer:
Crazy boy [7]3 years ago
3 0
Three ways you can use an electric current:
1. in a battery to power a flashlight or other devices
2. to produce heat
3. using a power tool
4. chargers
 
If the two requirements of an electric<span> circuit are met, then charge will flow through the external circuit. Causing a </span> flow of electric charge to power any machine or device, etc.

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Refer to the image i couldnt copy it so the image is the quesstion<br><br> answer in true or false
Irina18 [472]

The sign of "b" on the numerator should be negative. So we conclude that the correct option is false.

<h3>Is the equation in the image correct or incorrect?</h3>

For a quadratic equation of the form:

y = a*x^2 + b*x + c

By using the Bhaskara's formula, the solutions of the equation:

0 = a*x^2 + b*x + c

Are given by the formula:

x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}

Notice that the sign of the first term on the numerator should be negative, while on the image it is positive.

So the equation shown in the image is incorrect.

If you want to learn more about quadratic equations:

brainly.com/question/1214333

#SPJ1

6 0
2 years ago
Pennsylvania has a land mass of 44,816 square miles.What is the land area of Pennsylvania rounded to the nearest hundred?
sineoko [7]
The answer would be 44,800 if you want to round the hundreds place
4 0
3 years ago
X + y = k
liraira [26]
Hello,
Adding the 2 equations,
x+y+x-y=k+k ==>2x=2k==>x=k
if x=k, y=k-k=0
solution is (k,0)

7 0
3 years ago
Read 2 more answers
I need help with these 2 math problems <br> 1)<br> -3 3/8 x 6=<br> 2)<br><br> 7/9 x 6=
earnstyle [38]
1) -34 which is very simple
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6 0
3 years ago
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A store marks up sweaters by 23%. Find the retail price of a sweater originally priced at<br>$48.​
34kurt

Answer:

The mark up price of the sweater would be $59.04

8 0
3 years ago
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