Answer:
x = -2, y = 1
Explanation:
Finding X:
3x + 4y = -2
2x - 4y = -8
5x = -10
5x/5 = -10/5
x = -2
Why: Using the elimination method, you can eliminate 4y and -4y since they are opposites. Then its an addition problem; 3x plus 2x is 5x. -2 plus -8 is -10. From there it's "junk and divide"
Finding Y:
2(-2) - 4y = -8
-4 -4y = -8
+4 +4
-4y = -4
-4y/-4 = -4/-4
y = 1
Why: Because you found that x = -2, you can then plug it in one of the equations. From there its simple "junk and divide". Hope this helps this took a long time to type lol.
Answer:
In its stable molecular form, oxygen exists as two atoms and is written O2. to distinguish it from an atom of oxygen O, or ozone, a molecule of three oxygen atoms, O3. Even though each of these is all oxygen, combining atoms of the same element may give very different properties to the molecule.
Explanation:
Answer:
A semi colon is used to link 2 related clauses, before a conjunctive adverb or transitional phrase connecting 2 clauses, and separating items on a list that also contains commas
Explanation:
A semi colon ";" is a punctuation mark with 3 functions; it is used:
- <u>To link 2 complete and independent clauses that are related.</u> Example: Kate loves attending ballet class; when she dances, she feels like a butterfly.
- <u>Before a conjunctive adverb or transitional phrase that is connecting two complete and independent clauses.</u> Example: Susan has never enjoyed playing sports; nevertheless, she never misses an NFL game on TV.
- To separate items in a list that also contains commas. Example: Children usually like eating ice cream with different topping combinations such as: caramel, nuts and chocolate chips; strawberries, marshmallows and pecans; and coconut, brownie bites and whipped cream.
When reading, semicolons indicate a pause moderately longer than that of a comma, but shorter than that of a period.
Answer:
A. Predicate
Explanation:
Predicate is the part of a sentence or clause containing a verb and stating a thing about a subject (e.g., went home in John went home ).
