Choose all the answers that apply.

Magnesium (Mg) has 12 protons and 12 neutrons. Magnesium has_____.

an atomic weight of 12
an atomic number of 24
12 electrons
an atomic mass of 24
5 electron shells

Answers

Answer 1

Answer:

an atomic mass of 24

Step-by-step explanation:

remember the mass number is protons + neutrons


Related Questions

here u go 26 points for u to finish it

Answers

Please stop posting this

Parallel lines they don’t touch and are parallel

How can math be used/applied to architectural engineering?

Answers

Answer:

to plan their blueprints or initial sketch designs.

Step-by-step explanation:

Answer:

determining the feasibility of design decisions, keeping track of logistics, and to account for the cost of their designs. Math can also help guide architects in design when it comes to room sizing, space sizing, and component sizing

please help im bad at math thank you

Answers

Answer:

F = (1/2, 2 3/4)

G = (1/2, 2 1/4)

H = (1, 1 3/4)

I = (3/4, 1 1/4)

J = (1 1/4, 3/4)

Step-by-step explanation:

Do you still need help?

F = (1/2, 2 3/4)

G = (1/2, 2 1/4)

H = (1, 1 3/4)

I = (3/4, 1 1/4)

J = (1 1/4, 3/4)

What is the value of x given the following image?

Answers

Answer:

27

Step-by-step explanation:

CDE is a right angle so the sum of CDF and FDE is equal to 90

2x + x + 9 = 90 add like terms

3x + 9 = 90 subtract 9 from both sides

3x = 81 divide both sides by 3

x = 27

What type of association does the graph show between x and y?

A. Linear positive association

B. Nonlinear positive association

C. Linear negative association

D. Nonlinear negative association

Answers

The answer is A linear positive association

Answer:

Nonlinear positive association. B

Step-by-step explanation:

When X increases, Y increases => positive association

Link all dots, u can see a curve rather than a line. => nonlinear

What is the product of 1/3 and 4/7?
PLEASE HURRY

Answers

Explanation: 1/3 x 4/7
1 x 4=4
3 x 7=21

Answer:4/21
Simplified: can not be simplified
I think the answer is 4/21??

Find the length of the missing side in the figure below. a = _______ cm.
a right triangle with short side labelled a, long side labeled 4.7 cm and hypotenuse labelled 7.1 cm. PLEEZE! IM DESPERATE!

Answers

Answer:

[tex] \frac{2 \sqrt{177} }{5} [/tex]

or

5.32cm correct to 2 decimal places

Step-by-step explanation:

This is a right angled triangle from what I know so we have to apply pythagoras theorem.

[tex] {7.1}^{2} = {a}^{2} + {4.7}^{2} [/tex]

we need to rearrange this to find a²

[tex] {a}^{2} = {7.1}^{2} - {4.7}^{2} [/tex]

[tex]a = \sqrt{ \frac{708}{25} } [/tex]

This can either be written as a fraction or decimal.

[tex]a = \frac{2 \sqrt{177} }{5} [/tex]

OR

[tex]a = 5.32[/tex]

correct to 2 decimal places

Find the numbers of faces, edges, and vertices of the solid.

Answers

Answer:

Faces: 7

Edges: 15

Vertices: 10

 

Answer :)

Hello, I'm Lilo and I'm here to answer your question (chance it's incorrect or correct)

Answers in the explanation.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Explanation/Answers:

They are 7 faces, 15 edges and 10 vertices

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Last messages:

I hope this helps :)

Bye! have a great Morning/Afternoon/Night.

- [Lilo6was6taken <3]

please help me with this

Answers

Answer:

The answer is C: P=8h

Step-by-step explanation:

For every hour worked he is making $8. For example, if he worked 6 hours he would make 48 dollars.

Answer:

C: p=8h

Step-by-step explanation:

If you would think about it, p (earnings) relies on h (how long he worked), therefore it would be p=8h

The ratio of the surface areas of the similar solids is:

25:1

5:1

125:1

Answers

5:1 hope it helps!! (Multiply the numbers and then add)

PLEASE HELP ME!!!!!!!!!!!!!

Answers

Answer: I would say D.

Its a guess ok, i have no idea.

1 unit down (a) becuse the point A is (0,1) meaning over 0 and up 1. To get it to (0,0) you move it down once

plot twists 12.03 pls help

Answers

The total number of ski trails based on the information about the fraction is 12 ski trails.

How to calculate the fraction?

The difference in length between the longest ski trail and the shortest ski trail will be:

= 3 1/8 - 2 1/4

= 3 1/8 - 2 2/8

= 7/8 miles

The total length of the ski trials that are 2 7/8 miles long will be:

= 3 × (2 7/8)

= 3 × 23/8

= 69/8

= 8 5/8 miles

The sum of the shortest and longest trail will be:

= 3 1/8 + 2 1/4

= 3 1/8 + 2 2/8

= 5 3/8

Lastly, the longest ski trail isn't more than three times the shortest trail. Therefore, Eli is correct.

Learn more about fractions on:

brainly.com/question/78672

#SPJ1

the total number would be 12

6.1 divided by 3 but simplified

Answers

Answer: hii

2.03

Step-by-step explanation:

Divide 6.1 by 3.

Hopefully this helps you

- Matthew

hi! the answer to your question is 2.3!

help again plsssssssssssss

Answers

Area of top rectangle = 7x3=21
Area of bottom rectangle = 3x2=6

Total area = 21+6 = 27

HELP PLEASE! FIND THE SURFACE AREA OF PYRAMID

Answers

Answer:

136.73972

Step-by-step explanation:

A=lw+l(w

2)2+h2+w(l

2)2+h2=6·5.2+6·(5.2

2)2+92+5.2·(6

2)2+92≈136.73972

Hi! I got an answer of 123.6 ft sq for the surface area. Hope that helps :)

WILL GIVE BRAINLIEST TO ANSWERER!
(3/y-3)=(12/y+3)

Please help me...

Answers

Answer:

Step-by-step explanation:

hope this helps

Find the area of the circle. Round your answer to the nearest tenth

Answers

Answer:

29.791

Step-by-step explanation:

please put as brainliest

Answer: 29.791

Step-by-step explanation:

Please help with this i have a test on Monday and need to understand :)

Answers

Answer:

$800 in a week

Step-by-step explanation:

to find how much she had after giving it to her mother we can use the equation 240 / 75%

240 / 75% = 320

then you must find how much she had before she gave part of her wage to her mother

320 / 40% = 800

she earns $800 in a week

Answer:

800$

Step-by-step explanation:

PLEASE HELP ME OUT TY!!!!!!
CHOOES 2 ANSERS THANK U (i wount give u points if u dont)∅

Answers

Answer: option b nd c

Step-by-step explanation: always negative numbers will be on left side of number line and right side positive number. So th answer is option b, and when we add 8 + 8 the answer we get is 16 so the sign will be if bigger number so the answer is -16.

The populations of two cities after t years can be modeled by -150t+50,000 and 50t+75,000. . What is the difference in the populations of the cities when t=4

Answers

Answer:

25,800

Step-by-step explanation:

-150(4) + 50,000 = 49,400

50(4) + 75,000 = 75,200

75,200 - 49, 400 = 25,800

Peter made a square pin for his pet guinea pig to roam in. One side was 18.2 cm. What is the area of the pin?
A. 331.24 cm
B. 321.24 cm
C. 74.8 cm
D. 72.8 cm

Answers

Hi!

Answer:

A) 331.24

Step-by-step explanation:

To find the area, you need to multiply LxW, (Length x Width) and in this case, since it's a square, the sides are equal. Each side is 18.2 cm, so all we have to do is multiply 18.2 by 18.2, and then we get 331.24, so your answer is option A.

I hope this helps! :)

It’s A since 18.2*18.2=331.24

A spinner has four colors: red, yellow, blue, and green. It is spun several times and the results are displayed in this table.


Red: 5 Yellow: 7 Blue: 1 Green: 9

What is the experimental probability of landing on blue?


Enter your answer, as a decimal rounded to the nearest tenth, in the box.

Answers

Answer:

0.05 or 0.1

Step-by-step explanation:

1/21 =0.05 or 0.1

place as brainliest

!; these are my last 2 questions,, I need help!!

Answers

You didn’t upload a picture or it won’t open ?
the answer is
down 4 left 2
An equation: f(x)= (x+2)^2-4

IF YOU CAN ANSWER CORRECTLY I WILL MARK YOU BRAINLIEST

Answers

Hi, the answer is 1436.76

Hope I’ve helped!

I need help on this one

Answers

Answer:

$7897.50

Step-by-step explanation:

using both compound interest and simple interest, they will need to pay $7897.50 by the end of a year

A rectangle measures 2 1/2 inches by 3/4 inches What is its area?

Answers

Answer:

1 7/8

Step-by-step explanation:

I think you need to times it like 2 1/2 x 3/4, first you make 2 1/2 into 5/2 then times it like this 5/2 x 3/4. the answer is 1 7/8

You have to do 5/2 x 3/4. The result of this is 15/8. If you simplify this it will be 1 7/8 inches

Please help I dont understand

Answers

Answer:

I think it is B

Step-by-step explanation:

mark me brainliest

B) 9ft

The area of a square is us found by taking the length of a side and squaring it. For example, if 9 is the side length, we would find the area by doing 9^2 or 9 x 9. This gives us 81 which is the closest to 76.5.

According to health studies, a healthy female below the age of 65 should maintain a BMI be 18.5 and 21.4. If Suzanne wants to maintain a BMI of 20, how many hours a week should she active?​

Answers

Answer:

To lose weight, the American Council on Exercise recommends doing a combination routine of aerobics, strength training and flexibility for at least 45 minutes per day on five or six days per week.

To maintain your weight: Work your way up to 150 minutes of moderate-intensity aerobic activity, 75 minutes of vigorous-intensity aerobic activity, or an equivalent mix of the two each week. Strong scientific evidence shows that physical activity can help you maintain your weight over time.

Assume no more than 5 questions are used and every question asked is answered correctly by one of the competitors. How many different ways can the final round play out such that Competitor A wins the round? (Example I: Competitor A could get the first 3 questions correct (AAA), Example II: Competitor B could get only the second question correct (ABAA).)

Answers

Answer:

The final round can play out such as ABA BAA AAB AAA

Step-by-step explanation:

Please tell me if I'm wrong, I'm sorry if I am. Have a wonderful rest of your day or night! ~ ^w^ ~

what do i write? giving 10 points

Answers

Answer: get a pencli and put it on the paper a move it aroud

Step-by-step explanation:

He drew a scalene triangle
A scalene triangle is where all side measure and all angle measure are different.
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