Answer:
Charges are both negative and positive as such negative charges are drawn to positive charges and the same with positive being drawn to negative
this can be explained because the human body has natural medals in that attract negative and positive charges just like metal.
Answer:
3 3/4
Step-by-step explanation: all that you have to do is add 1/3 +2/3+11/4 which gives you 3 3/4
Answer:
number 3
Step-by-step explanation:
Answer:
D. 11.6 cm
Step-by-step explanation:
The missing length of the right angled triangle can be calculated using Pythagorean Theorem as shown below:
![c^2 - b^2 = a^2](https://tex.z-dn.net/?f=%20c%5E2%20-%20b%5E2%20%3D%20a%5E2%20)
Where,
a = x cm
b = 11 cm
c = 16 cm
Thus:
![16^2 - 11^2 = x^2](https://tex.z-dn.net/?f=%2016%5E2%20-%2011%5E2%20%3D%20x%5E2%20)
![256 - 121 = x^2](https://tex.z-dn.net/?f=%20256%20-%20121%20%3D%20x%5E2%20)
![135 = x^2](https://tex.z-dn.net/?f=%20135%20%3D%20x%5E2%20)
![\sqrt{135} = \sqrt{x^2}](https://tex.z-dn.net/?f=%20%5Csqrt%7B135%7D%20%3D%20%5Csqrt%7Bx%5E2%7D%20)
![\sqrt{135} = x](https://tex.z-dn.net/?f=%20%5Csqrt%7B135%7D%20%3D%20x%20)
![11.61895 = x](https://tex.z-dn.net/?f=%2011.61895%20%3D%20x%20)
(nearest tenth)
Answer: a. x=4 b. x=17.5
Step-by-step explanation:
a. 5x/2+1=11
subtract 1 from both sides : 5x/2=10
multiply both sides by 2 : 5x=20
divide both sides by 4 : x=4
b. 2x/7-3=2
add 3 to both sides : 2x/7=5
multiply both sides by 7 : 2x=35
divide both sides by 2 : x=17.5