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sergejj [24]
3 years ago
8

Pls help me!!!!!!!!!

Mathematics
1 answer:
Ann [662]3 years ago
4 0

Answer: 6. When insulating materials rub against each other, they may become electrically charged . Electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. The material that gains electrons becomes negatively charged.

7. The neutral electroscope becomes charged as the result of being contacted by the metal sphere. In contrast to induction, where the charged object is brought near but never contacted to the object being charged, conduction charging makes the physical connection of the charged object to the neutral object

8. Grounding is the process of removing the excess charge on an object by means of the transfer of electrons between it and another object of substantial size. When a charged object is grounded, the excess charge is balanced by the transfer of electrons between the charged object and a ground.

9. Grounding is the process of removing the excess charge on an object by means of the transfer of electrons between it and another object of substantial size. When a charged object is grounded, the excess charge is balanced by the transfer of electrons between the charged object and a ground.

Step-by-step explanation: Do NOT copy word for word but this will give an idea

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34% of 65. Do not round!!! pls help
anastassius [24]

Answer:

22.1

Step-by-step explanation:

If we put 65 over 100 and x over 34 and do cross multiplication, we see that 65 times 34 is 2,210. Dividing 100 from both sides of the equation, we divide 100 from x and 100 from 2,210. We are left with X = 22.1

6 0
3 years ago
Read 2 more answers
Please help me ill put the question up for a lot of point, and i will mark as brainliest!!!
sattari [20]

Step-by-step explanation:

(2x³y^-4)^-2 = 1/(4x⁶y^‐8) = y⁸/(4x⁶)

1/(8x⁵y^-7) = y⁷/(8x⁵)

4x^-9y⁴ = 4y⁴/x⁹

so, the whole expression is then

y⁸/(4x⁶) × y⁷/(8x⁵) × 4y⁴/x⁹

4y¹⁹/(32x²⁰) = y¹⁹/(8x²⁰)

so, D is the correct answer.

6 0
3 years ago
The enrollment at a local college increased 4% over last year’s enrollment of 2100. Find the current enrollment.
sveticcg [70]

Answer:

Current enrollment 2940

Step-by-step explanation:4% of 2100 is 840. You can find this by multiplying .4 by 2100. You would add 840 to 2100 to get 2940.


3 0
4 years ago
Read 2 more answers
PLEASEEE HELP !! in two the three sentences, explain how you would find the line of symmetry for the parabola whose equation is
Arada [10]

Answer:

<em>Axis of symmetry line  is parallel to y- axis</em>

Equation of the parabola <em> ( x - ( -2 ))² =  (y - 12 )   </em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given equation is y = x²+4 x+16

                            y =  x²+2 (2 ) x + (2)² - (2)² + 16

                           y   = ( x + 2 )² + 12

                         ( x + 2 )² = y - 12

                        <em> ( x - ( -2 ))² =  (y - 12 )   </em>

                         ( x- h)² = 4 a ( y - k)

            <em> Center (h ,k) = ( -2 , 12)</em>

<em>              Here   4 a  = 1 </em>

                          <em>  a = 1/4</em>

<em>Focus  S = ( h , K +a) = ( -2 , 12 + 0.25) = ( -2 , 12.25)</em>

<em>Axis of symmetry line  is parallel to y- axis</em>

                           

5 0
3 years ago
A rectangle was altered by increasing its length by 10 percent and decreasing its width by p percent. If these alterations decre
Roman55 [17]
It is d I hope I helped
4 0
4 years ago
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