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2 years ago

Which best describes a compound such as magnesium oxide

Mathematics

1 answer:

vfiekz [6]2 years ago

4 0

Answer:

D. a pure substance that is made up of different elements

Step-by-step explanation:

There are two types of pure substances: elements and compounds.

Elements are made up of only one type of atom. And compounds are pure substances, that are made up of more than one type of element. Like - magnesium oxide. It is a compound of a metal with a non-metal and is held together with ionic bonds.

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Find the scale factor of the similar polygons. Simplify your answer. (Hint: New/Old)

Alenkasestr [34]

1.5 :) :) :) :) :) :)

7 0

2 years ago

Please help! I have no idea what to do. I couldn't even guess an answer.

yulyashka [42]

y - y1 = m(x - x1)

Plug in:

Slope = m = 4

Point = (x1,y1) ----> (-3,7)

y - 7 = 4(x - -3) //Solve for y

y - 7 = 4(x + 3) //Answer

y - 7 = 4x + 12

y = 4x + 12 + 7

y = 4x + 19

Answer: B

//Hope it helps

4 0

2 years ago

What is 1/4 times 2 -9

krek1111 [17]

Answer:

-8.5

Step-by-step explanation:

1/4 times 2= 0.5

0.5-9=-8.5

Hope this helps :D

5 0

3 years ago

Read 2 more answers

One day, a person went to a horse racing area. Instead of counting the number of humans and horses, he counted 74 heads and 196

Anon25 [30]

Answer:

Option B. 24 horses and 50 humans

Step-by-step explanation:

Let

x ----> the number of humans

y ----> the number of horses

Remember that

A human has one head and two legs

A horse has one head and four legs

$x+y=74$ ----> equation A

$2x+4y=196$ -----> equation B

Solve the system by graphing

The solution of the system is the intersection point both graphs

The solution is the point (50,24)

see the attached figure

therefore

The number of humans is 50 and the number of horses is 24

4 0

2 years ago

*20 POINTS PLUS+++ BRAINIEST :D IF GOOD*

Veseljchak [2.6K]

Answer:

450 Area

Step-by-step explanation:

50 blocks long and 9 blocks wide. If you do 50x9 you get the area inside of the park.

3 0

3 years ago

Read 2 more answers