Explanation

In this sentence, "wasn't writing" correctly uses the past continuous tense to describe the ongoing problem with the pen.

"Must have run out of ink" correctly uses the perfect infinitive to express the likely cause of the problem

Explanation

An Essay Concerning Human Understanding is a philosophical work written by John Locke

It first published in 1689

Explanation

A synonym for "guzzle" is "gulp." 

Explanation

Explanation

Bernardo Arévalo was inaugurated as the 52nd president of Guatemala in January 2024.

His presidency marks a significant moment in Guatemalan politics.

He focusing on anti-corruption and democratic reforms.

Explanation

Given:

(x1 + x2 + x3 + x4) / 4 = 16

Multiply both sides by 4:

x1 + x2 + x3 + x4 = 64 ... (Equation 1)

Also, (x2 + x3 + x4) / 2 = 23

Multiply both sides by 2:

x2 + x3 + x4 = 46 ... (Equation 2)

Now, substitute Equation 2 into Equation 1: x1 + 46 = 64

Subtract 46 from both sides: x1 = 18

Therefore, the correct answer is: 18

Explanation

Given:

a^2 + b^2 = 8 ... (Equation 1)

(a - b)^2 = 4

Expanding the left side of the equation: a^2 - 2ab + b^2 = 4

Now, substitute Equation 1 into this equation: 8 - 2ab = 4

Subtract 8 from both sides: -2ab = -4

Divide both sides by -2: ab = 2

So, the value of ab is 2.

Explanation

Explanation

A mastery test measures whether students have acquired the minimum basic knowledge and skills required in a subject.

It determines if learners have achieved mastery before moving on to more advanced material.

Explanation

An antonym for "golden" سنہری is "dull." سست