Can someone please help me on this?

the integer that represents the total charge of 7 electrons is -1.The total charge of electrons is given by the formula:

total charge = number of electrons x charge of each electron

what are electrons ?

Electrons are subatomic particles that carry a negative electric charge. They are one of the fundamental particles that make up atoms, along with protons and neutrons. Electrons are found in shells or energy levels that surround the atomic nucleus

In the given question,

The total charge of electrons is given by the formula:

total charge = number of electrons x charge of each electron

The charge of an electron is a fundamental constant, which is equal to -1.602 x 10⁻¹⁹ Coulombs. Therefore, the total charge of 7 electrons can be calculated as:

total charge = 7 x (-1.602 x 10⁻¹⁹) C

total charge = -1.1214 x 10⁻¹⁸ C

Note that the charge of an electron is negative because it has an opposite charge to the positively charged protons in an atom. Therefore, the total charge of 7 electrons is also negative. To express this charge as an integer, we need to convert it to scientific notation and round to the nearest whole number. Rounding to the nearest whole number gives:

total charge = -1 x 10⁻¹⁸ C

Therefore, the integer that represents the total charge of 7 electrons is -1.

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Answer:

x=9

Step-by-step explanation:

2/3x-1=5

Add 1 to each side

2/3x-1+1= 5+1

2/3x = 6

Multiply each side by 3/2

2/3x*3/2 = 6*3/2

x = 9

Answer:

x=9

Step-by-step explanation:

You add one to both sides, multiply 3 to both sides (to further isolate x), and then divide by 2 on both sides. When you substitute back in, both sides of the equation are equal to each other.

Answer:

-2, 6

Step-by-step explanation:

if Figure ABCDE was reflected across the line y = x to create figure A'B'C'D'E' then (6, -2)  are the coordinates of the pre-image of E'.

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

Graph transformation is the process by which an existing graph, or graphed equation, is modified to produce a variation of the proceeding graph.

It's a common type of problem in algebra, specifically the modification of algebraic equations.

ABCDE was reflected across the line y = x to create figure A'B'C'D'E'.

The coordinates of the pre-image of E' are (6, -2)

Hence, coordinates of the pre-image of E' are (6, -2)

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Answer:

is 764

Step-by-step explanation:

beacuse it has 764 and i dont konw the rest

Answer:

2 x 10⁵ is the answer I believe.

Answer:

Step-by-step explanation:

Given

The difference in population

Answer:

f(x)= (x+2)²

= x²+4+2x

then f(3) = 3²+4+2*3

= 9+4+6

add up the sum and here's your ans

Answer:

520

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer:

The expected value of the proposition is -$0.76.

Step-by-step explanation:

It is provided that a basketball player has made 291 out of 389 free throws.

Then rate of him making a free throw is,

[tex]P(\text{free throw})=\frac{291}{389}=0.7481[/tex]

The probability that he makes the next 2 free throws is:

[tex]P(\text{Next 2 free throws})=(0.7481)^{2}=0.5596[/tex]

The payout rules are:

Compute the expected value of the proposition as follows:

Expected value = $38 × P (Makes both) + (-$50) × P (Misses both)

                          [tex]=($38\times 0.5596)+(-$50\times (1-0.5596))\\=21.2648-22.02\\=-0.7552\\\approx -$0.76[/tex]

Thus, the expected value of the proposition is -$0.76.

Answer:

Product is defined             [tex]{}[/tex]                                

(ML, MP, NM, PQ, PL, LP, MQ, LQ)        

Product is not defined

(LM, PM, MN, QP, QM, NQ, QN, NL, LN, NP, PN, QL)  

Step-by-step explanation:

During multiplication of matrices, the number of columns of the first matrix must be equal to the number of rows of the second matrix it is multiplying.

Therefore, we can only multiply a m×n matrix to a n×c matrix as follows;

We can only multiply (m×n)·(n×c) → Product is defined

We can not multiply (n×c)·(m×n) →∞ Product is not defined.

Answer:19.5

Step-by-step explanation:

7+7=14

14+0.20=14.2

14.2+5=19.2

19.2+0.30=19.5

Your answer is:19.5

Answer:

-x/6 + 3 =8

x = -30

2/7(x) = 10

x = 35

-10x = -100

x = 10

Answer:

it is 5

Step-by-step explanation:

7d+4d-3d=40

7d+1d=40

8d=40

40/8=x

x=5

if it was addition

Answer:

c

Step-by-step explanation:

You add up all of the points and divide by 5.

Answer:C

Step-by-step explanation:

9 x 3 = 27

Answer:

1a) 1:2

1b) 2:3

Step-by-step explanation:

1a) 4:8 = 1:2

1b) 4 white and 8 red means 12 total so ratio for red would be 2:3

Answer:

Step-by-step explanation:

Ratio of white roses to red roses

Ratio of red to all

Sum of roses

Ratio

Answer:4.03 x 10^4

Step-by-step explanation:

Answer:

8 parties

Step-by-step explanation:

First, find how much of her paycheck was from working 30 hours:

7.50(30)

= 225

Then, subtract this from 265, to find how much money was from bonuses:

265 - 225

= 40

To find how many parties she scheduled, divide 40 by 5, since each party she schedules gives her a $5 bonus:

40/5

= 8

So, she scheduled 8 parties

Answer:

The fractions are not equivalent. If you cross multiply 65 x 2 = 130 and 4 x 13 = 52. 130 > 52. Set them as a proportion. [tex]\frac{65}{4} = \frac{13}{2}[/tex]

They are not equal.

For 65/4 you cannot divide it by 2 and then get 13/2. You would get 32.5/2.

32.5/2 is not equal to 13/2

hope this helps :)

Answer:

it is in this order

Step-by-step explanation:

D E A B C your welcome! and good luck

Answer:

b

Step-by-step explanation:

It is better to use the metric system, rather than the English system, in scientific measurement because,

The metric system uses one unit for each category of measurement.

A system of measurements is called the metric system. It is employed in calculations and research across the globe.

Measurements for length include millimeters (mm), decimeters (dm), centimeters (cm), meters (m), and kilometers (km).

A foot equals 30.48 cm, however, a popular 30 cm rule measures every 1 cm, therefore the metric system also provides more exact measurements.

The English system is in fact based on the metric system because they look for reference materials to get the measurements.

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Answer:

A, 12.5

Putting them in order was this:

10, 11, 11, 11, 12, 13, 13, 15, 15, 17

and the median is between 12 and 13, which is 12.5

(Hope that helps you. ^^)

Answer:

3.348 × 10^2 US

3.6166 × 10^2 CA

Step-by-step explanation:

3.1 x 108= 3.348 × 10^2 US

3.38 x 107= 3.6166 × 10^2 CA

Answer:

The smallest number is 114921 and the cube root of the result is 339

Step-by-step explanation:

The number 339 can be factored as:

339 = 3 * 113

Both factors are prime, thus to produce a perfect cube, we must multiply by each factor to the power of 2, that is:

3^2*113^2=114921

When we multiply 339 by 114921 we get 38958219, a perfect cube which cube root is 339.

Thus, the smallest number is 114921 and the cube root of the result is 339

Answer:

The second graph.

Step-by-step explanation:

The first graph has a negative slope, so that can't be the right answer.

The last graph isn't steep enough to show a rate of 2.5.

This leaves us with the middle graph which is correct.

Answer:

75%

Step-by-step explanation:

Answer:

m=10

Step-by-step explanation:

Answer:

m=10

Step-by-step explanation:

9(m+5)−3(m−2)=8m+31

Step 1: Simplify both sides of the equation.

9(m+5)−3(m−2)=8m+31

9m+45+−3m+6=8m+31

(9m+−3m)+(45+6)=8m+31(Combine Like Terms)

6m+51=8m+31

Step 2: Subtract 8m from both sides.

6m+51−8m=8m+31−8m

−2m+51=31

Step 3: Subtract 51 from both sides.

−2m+51−51=31−51

−2m=−20

Step 4: Divide both sides by -2.

m=10

Hope this helps girly!!

Answer:

its 3.05

Step-by-step explanation:

The coordinates of A will be at (-10, -5) when the transformation (x,y) → (x + 10, y + 5) is  performed on point A.

Given the coordinate of the resulting image after the transformation is A'(0, 0). We need to get the coordinate of the original image A.

Since the transformation (x,y) → (x + 10, y + 5) is performed on A.

A = (0 - 10, 0 - 5)

If we are going from the pre-image to the image, we will translate to the left and downwards

A = (-10, -5)

Hence the coordinates of A will be at (-10, -5)

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