Explanation

Let's denote the original length and width of the rectangle as L and W, respectively.

The original perimeter is:

2L + 2W = 34

If we increase the length by 2 cm, the new perimeter will be:

2(L + 2) + 2W

= 2L + 4 + 2W

The difference in perimeter is:

(2L + 4 + 2W) - (2L + 2W)

= 4

Explanation

The Mechanistic Perspective sees behavior as a direct result of stimulus-response interactions, which is central to both Classical and Operant Conditioning.

These conditioning types explain how external stimuli lead to learned behaviors through reinforcement or association.

Explanation

CaCO₃ → CaO + CO₂

This reaction absorbs heat to break calcium carbonate into calcium oxide and carbon dioxide.

It is a classic endothermic decomposition reaction, requiring continuous heating to proceed.

Explanation

To find the greatest possible length of each piece, we need to find the greatest common divisor (GCD) of 18, 42, and 24.

Factors of 18: 1, 2, 3, 6, 9, 18

Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

The greatest common factor is 6.

Explanation

Existentialism in education emphasizes individual choice, freedom, and personal responsibility in learning.

It focuses on student-centered learning, allowing learners to explore what is personally meaningful to shape their identity.

Explanation

The word "kindly" suggests a polite request, so we use "requested" in indirect speech.

The sentence changes from direct to indirect without quotes and in the correct verb form.

Explanation

A complex sentence contains one independent clause and at least one dependent (subordinate) clause.

The dependent clause "Although we were late" and the independent clause "we caught the train."

Explanation

An imperative sentence gives a command or instruction.

"Finish your homework" directs someone to do something, so it is imperative.

Explanation

"Even so" introduces a contrast, indicating that despite the statement being correct, more evidence is still needed.

It fits the context of acknowledging a point but emphasizing a continuing need or exception.

Explanation

T cells identify and destroy virus-infected or abnormal cells directly.

They also activate other immune cells by releasing signaling molecules called cytokines.