Tooth enamel—the hardest substance in the human body—doesn't consist of living tissue, so it can't regenerate itself if it is damaged.

Complete Question:

Identify what type of sentence is this.

Tooth enamel—the hardest substance in the human body—doesn't consist of living tissue, so it can't regenerate itself if it is damaged.

Group of answer choices.

A. Simple.

B. Compound.

C. Complex.

D. Compound-Complex.

D. Compound-Complex.

Explanation:

A sentence can be defined as a group of words that comprises of both a subject and predicate used to convey a logical information. Sentences are classified into four (4) main categories and these includes;

I. Simple sentence.

II. Compound sentence.

III. Complex sentence.

IV. Compound-Complex sentence.

A compound-complex sentence comprises of a minimum of two independent clause and at least a dependent clause. Therefore, a compound-complex sentence has at least two subordinate clause and as such it is a combination of complex and compound sentence with a conjunction.

An independent clause can be defined as a clause that expresses a complete thought while standing alone as a simple sentence and comprises of at least a subject and a verb (predicate).

Some example of an independent clause in the given sentence are;

-the hardest substance in the human body.

-doesn't consist of living tissue.

The dependent clause is "Tooth enamel."

Additionally, compound-complex sentences are usually very long compared to other types of sentence.

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4

nature versus humanity!