I atom has 17 protons , 18 neutrons, and 17 electrons, what is the mass of this atom

Answers

Answer 1

Answer:

35.075

round to 35

Step-by-step explanation:

took the test:D


Related Questions

Find the inverse of the function: f(x)=3x−6

A f−1(x)=−2/3x
B f−1(x)=1/3x+2
C f−1(x)=−1/3x+12

Answers

Answer:

B. [tex] {f}^{ - 1} (x) = \frac{1}{3} x + 2[/tex]

Step-by-step explanation:

[tex]f(x) = 3x - 6[/tex]

[tex]y = 3x - 6[/tex]

[tex]x = 3y - 6[/tex]

[tex]3y - 6 = x[/tex]

[tex]3y = x + 6[/tex]

[tex]y = \frac{1}{3} x + 2[/tex]

[tex]\boxed{\green{ {f}^{ - 1} (x) = \frac{1}{3} x + 2}}[/tex]

A small fly weighs approximately 2.2 • 10^-3 gram and an average sized gnat weighs approximately 9•10^-4
1. find the sum of the weights of the two insects
2. How much heavier is the fly than the gnat?

Answers

Dhdjsksxksjaa jsjssisjdbi shdjdkswbkdjaja

Which Native American group built cities and had widespread trade throughout the Midwestern region of North America?

giving brainlest

Answers

Explanation/answer

Explanation: Because the mound builders built cities and traded far and wide throughout the midwestern region. Which Native American groups built cities? Answer Expert Verified The varying cultures collectively called Mound Builders were inhabitants of North America who, during a 5,000-year period, constructed various styles of earthen mounds for religious and ceremonial, burial, and elite residential purposes. DONT FORGET TO GIVE BRAINILEST

Answer:

mound builders

Step-by-step explanation:

Because the mound builders built cities and traded far and wide throughout the Midwestern region

Write an expression for "the product of 5 and z.”
+
y
Stuck? Review related articles/videos or use a hint.

Answers

Answer:

5z

Step-by-step explanation:

Product means multiply

5z

I need the logistics models student guide answer key!!

Answers

Answer:

Ans

Step-by-step explanation:

if you get it, please share it with me.

HELP PLEASE 25 POINTS

Answers

Answer:

First is <  2nd is = 3rd is <

Step-by-step explanation:

What is -1 7/8 + -2 1/4? Please explain why and a step by step :).

Answers

9514 1404 393

Answer:

  -4 1/8

Step-by-step explanation:

Many people find it easier to factor out -1, then do the addition. The fractions need a common denominator before they can be added. A suitable denominator that is a multiple of both 4 and 8 is 8.

The fraction 1/4 = (1/4)(2/2) = (1·2)/(4·2) = 2/8.

__

So, the problem can be rewritten as ...

  -(1 7/8 +2 2/8)

  = -((1+2) +(7/8 +2/8))

  = -(3 +9/8)

The fraction 9/8 is an improper fraction equal to 8/8 +1/8 = 1 1/8. Then the sum is ...

  -(3 +1 1/8) = -4 1/8

What is 3.5 divided by 7

Answers

Answer:

1/2 or 0.5

Step-by-step explanation:

....

The solution for 3.5 divided by 7 is,

⇒ 70

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The expression is,

⇒ 3.5 divided by 7

Now, We can write as;

⇒ 3.5 divided by 7

⇒ 3.5 ÷ 7

⇒ 35 / 70

⇒ 1 / 2

Thus, The value of fraction for 3.5 divided by 7 is,

⇒ 1/2 or 0.5

Learn more about the divide visit:

brainly.com/question/28119824

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7. Given directed line segment RT below, find the coordinates of S such that the ratio of RS to ST is 5:1. Plot point S​

Answers

A line can be divided in proportions using ratios. The point at which a line is divided in ratios is calculated using: [tex][\frac{mx_2+ nx_1}{m+n},\frac{my_2+ ny_1}{m+n}][/tex]

The coordinate of S is: [tex](6,\frac{8}{3})[/tex]

Given that:

[tex]RS : ST = 5 : 1[/tex]

The coordinates of RT are not given. So, I will solve using a general explanation.

When a line is divided into ratios, the point (S) at which the line is divided is calculated using the following line ratio formula:

[tex]S = [\frac{mx_2+ nx_1}{m+n},\frac{my_2+ ny_1}{m+n}][/tex]

Assume the coordinate of R and T is:

[tex]R = (1,6)\\T = (7,2)[/tex]

[tex]RS : ST = 5 : 1[/tex] means:

[tex]m:n = 5:1[/tex]

So, point S is:

[tex]S = [\frac{5\times 7+ 1 \times 1}{5+1},\frac{5 \times 2+ 1 \times 6}{5+1}][/tex]

[tex]S = [\frac{36}{6},\frac{16}{6}][/tex]

[tex]S = [6,\frac{8}{3}][/tex]

Hence, if the coordinates of R and T are:

[tex]R = (1,6)\\T = (7,2)[/tex]

And the line ratio is:

[tex]m:n = 5:1[/tex]

The coordinate of S is:

[tex]S = [6,\frac{8}{3}][/tex]

Read more about line ratios at:

https://brainly.com/question/3148758

Look at image for question and answers

Answers

Answer:

d

Step-by-step explanation:

i did this last year

2. Describe a situation that could be modeled with the ratio 4: 1.​

Answers

Answer:

u can do something like u have 8 pencils and 2 pens

Step-by-step explanation:

cause two divided by two is four and u only have to divide it once so that how u get that answer

Find the area of a triangle with a base of 6 m and a height of 3 m.

Answers

Area of a triangle=1/2×base×height
Area=1/2×6×3=9

Hope my answer helped u :)

help please !
Enter your answer and show all the steps that you use to solve this problem in the space provided Simplify the expression (7 + 5) +4.13 - 2

please show me the steps to get the answer ​

Answers

Answer:

14.13

Step-by-step explanation:

(7 + 5) +4.13 - 2

PEMDAS says parentheses first

(12) +4.13 - 2

Then add and subtract from left to right

16.13 -2

14.13


The temperature of the pool water was 83 degrees during the day and
dropped 7 degrees at night. What was the new temperature.

Answers

Answer:

76

Step-by-step explanation:

83-7=76

Including a 9% sales tax an inn charge 149.33 per night

Answers

Step-by-step explanation:

9% tax means 9% increase

multiplier ×1.09

149.33×1.09=162.7967

plss mark brainliest

Share £360 into the ratio 3:2:1

Answers

Answer:

£180, £120 and £60.

Step-by-step explanation:

The number of parts = 3 + 2 + 1 = 6.

360 / 6 = 60, so the shares are:

3*60 = 180

2*60 = 120

1 * 60 = 60.

The distribution of £360 in the ratio of 3:2:1 will be  £180, £120 and £60.

What is a ratio?

In mathematics, ratios are used to determine the relationship between two numbers it indicates how many times is one number to another number.

The number of parts = 3 + 2 + 1 = 6.

360 / 6 = 60, so the shares are:

3  x 60 = 180

2 x 60 = 120

1  x 60 = 60.

Hence the distribution of £360 in the ratio of 3:2:1 will be  £180, £120 and £60.

To know more about ratios follow

https://brainly.com/question/2328454

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Please help me. I'm stuck on question C. I've tried 1 or -1 so please tell me what's wrong with that. Thank you.

Answers

Answer:

In the first two parts you have filled in the table and found the correct graph of the function y = x² - x - 2, which is C.

Now, to solve for part C, you need to consider y = 3 value on the graph C.

Corresponding points on x-axis are the points you are looking for.

The points are:

-1.8 and 2.8

See the attached.

Pls help it's due today It's DUE IN 8 MINUTES.

Answers

Answer:

84 pounds

Step-by-step explanation:

The rectangles are similar. Find x.

Answers

Answer:

From scale factors:

[tex] \frac{18"}{12"} = \frac{x}{5"} \\ \\ x = \frac{18" \times 5"}{12"} \\ \\ x = \frac{90"}{12"} \\ \\ x = 7 \frac{1}{2} "[/tex]

please help me solve ​

Answers

Answer:

A

Step-by-step explanation:

Cuz if the y intercept increases, so does the line

Answer:

answer A

semoga membantu

If x represents the first, or the smaller, of two consecutive odd integers, express the sum of the two integers in terms of x.
The answer is
(Simplify your answer.)

Answers

Answer:

2x + 3

Step-by-step explanation:

1) x+1

2) x+3

x+1+x+2 = 2x + 3

If you have 3/12 of an orange, how many fourths do you have?​

Answers

Answer:

Answer: one fourth

Fourth is a word that used to describe a number value of 1/4. To answer this question, you need to change the number you got (3/12) into x/4 form. To convert 12 into 4, then you need to divide the numerator and denominator with 3. The equation would be (3/3)/(12/3)= 1/4. 

To determine how much fourth the number has, you need to divide the result with 1/4. The calculation would be: (1/4)/ (1/4)= one fourth

hope its help

thank you

good day

Find the distance between the points L(7, -1) and M(-2,4)

Answers

Answer:

I hope it will help you....

please help that’s all i just need to make i’m correct it due tomorrow early so please

Answers

The answer is 6 i think

Write an expression for the operation described below.


multiply 6 by u

Answers

Answer:

6u

Step-by-step explanation:

it is the algebraic answer.

hope this helps!

Answer:

the answer is 6×u

Step-by-step explanation:

by and multiply are multiplication

Solve for X. Will give a lot of points. HELP!!!

Answers

Answer:

7).

RT = RS + ST

[tex]10 = (2x - 20) + (2x - 18) \\ 10 = (2x + 2x) + ( - 20 - 18) \\ 10 = 4x - 38 \\ 4x = 10 + 38 \\ 4x = 48 \\ { \boxed{x = 12}}[/tex]

8).

LN = LM + MN

[tex](5x - 2) = 12 + (x + 2) \\ (5x - x) = 12 + 2 + 2 \\ 4x = 16 \\ { \boxed{x = 4}}[/tex]

I hope this helps. I wasn’t sure how to put it into words.

Is 0.875 irrational or rational and why?

Answers

Yes it’s rational It can be expressed as the quotient of two integers

determine the value of n and what property is represented.
3n = 1

Answers

I believe n is 1/3.

Solve for x (2x-6)(x+1)

Answers

The answer of the question

Round 12.5478 to the nearest hundredth's

Answers

Answer:

I'm pretty sure it's 12.55

Step-by-step explanation:

12.55 because

8 makes the 7 a and that 8 makes the 4 a 5

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