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professor190 [17]
3 years ago
12

if a atom has 12 positively charged protons and 12 negatively charged electrons when is its total charge ?

Mathematics
1 answer:
professor190 [17]3 years ago
3 0

Answer:

The total charge in an atom is zero or it is neutrally charge. both nulify each others charge.

  • If the atom has some charge in it then it is called an ion.
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Grandma Gertrude gave 13 pieces of jewelry and grandma Fien gave y pieces of jewelry to the Carlson sisters to divide evenly amo
Papessa [141]

Answer:

x=\frac{13+y}{5}

Step-by-step explanation:

Grandma Gertrude gives 13 and Fien gives y.

x=13+y

The total amount of jewelry divided evenly between  the 5 sisters:

x=\frac{13+y}{5}

Nothing further can be done without knowing another value.

4 0
3 years ago
What is the volume of a hemisphere with a radius of 29 m, rounded to the nearest tenth of a cubic meter?
salantis [7]

Answer:

19.4 cubic meter

Step-by-step explanation

Round your answer to the nearest tenth of a cubic centimeter.

4 0
3 years ago
Is this the correct answer? if not, what is it?
sergiy2304 [10]

Answer:

B. 1:2800

Step-by-step explanation:

448 / .16 = 2800

1:2800

Feel free to let me know if you need more help! :)

6 0
3 years ago
A falling object travels a distance given by the formula d=3t+5t2, where d is measured in feet and t is measured in seconds. How
Romashka-Z-Leto [24]

Answer:

<em>4.52secs</em>

Step-by-step explanation:

Given the height of a falling object expressed as;

d=3t+5t^2

If the object travel 84 feet, we are to find the time t it takes to travel. On substituting;

84 = 3t+5t^2

3t+5t^2 - 84 = 0

t = -5±√25-4(3)(-84)/2(3)

t = -5±√25+1008/6

t = -5±32.14/6

t = -5+32.14/6

t = 27.14/6

<em>t = 4.52 secs</em>

<em>Hence it will take 4.52secs for the object to travel 84feet</em>

8 0
2 years ago
Given the expression -7+6i/2+3i , perform the indicated operation and write the answer in the form a + bi.
Andre45 [30]
\dfrac{-7+6i}{2+3i}\times\dfrac{2-3i}{2-3i}=\dfrac{(-7+6i)(2-3i)}{(2+3i)(2-3i)}=\dfrac{4+29i}{4-9i^2}=\dfrac4{13}+\dfrac{29}{13}i
8 0
3 years ago
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