1. Sumptuous
   Surreptitious
2. Superfluous

She was quiet, secretive and surreptitious. If she were superfluous, she would be unnecessary.

1. Integral
   Banal
2. Pretentious

When something is alarming, it's not soporific. Also, when someone is genuine, they are not pretentious.

1. 20
   4
2. 0.4

20% of 2 is 0.4. Start by initially breaking down 2 into 50%, which is 1.

1. Relish
   Abate
2. Abscond

His symptoms were incredibly strong and would not abate. When something abates, it becomes less in amount or intensity.

1. Parallel
   Opaque
2. Divergent

When someone is intelligent, they are not doltish. Similarly, when something is straight, it's not divergent.

1. Words
   Symbols
2. Spaces

Algebra is a branch of mathematics that uses symbols to represent numbers. Thee symbols also represent variables or values.

1. Impetuous
   Erudite
2. Patriotic

Her hasty departure was thoughtless and impetuous. Impetuosity is characterized by haste and carelessness.

1. Spontaneous
   Hyperbolic
2. Mundanity

When someone is cheerful, they have alacrity. Similarly, when something is ordinary, it has mundanity.

1. Nonchalance
   Petulance
2. Promptness

Blithe unconcern can be described as nonchalance. It's possible to remain nonchalant in the face of adversity. But it's not easy!

1. Derivatives
   Integrals
2. Both

Calculus is a branch of mathematics that includes both derivatives and integrals. It's used to study motion and changing values.

1. Quiet
   Oblique
2. Jubilant

To be ostentatious is the opposite of being pragmatic. Similarly, to be vociferous is the opposite of being quiet.

1. 5
   .001
2. .02

0.1 divided by 5 is equal to 0.2. You better not have used your calculator for that one!

1. 12
   37
2. 64

4 to the power of 3 is equal to 64. This is an example of exponentiation.

1. Querulous
   Garrulous
2. Stymied

The malcontent was complaining and querulous. The word refers to someone who is habitually complaining.

1. Magnanimous
   Stolid
2. Rancorous

When someone has a great deal of fear, they are timorous. Also, when someone has a lot of resentment, they are timorous.

1. Politics
   Economics
2. Engineering
   All of the above

Game theory can be applied to these topics and so much more. It is a branch of science that attempts to mathematically capture behavior in strategic situations

1. Pompous
   Sagacious
2. Malevolent

Her sound judgement and reasoning led her to be described as sagacious. Someone who is sagacious exhibits sagacity.

1. One tenth
   One one-hundredth
2. One one-thousandth

.001 can be read as one one-thousandth. The first position is a tenth, the second is a hundredth, and the third is a thousandth.

1. Apparent
   Subtle
2. Stymied

When something is difficult to detect or grasp with the mind, it's subtle. Something that is subtle is also difficult to analyze.

1. Gallant
   Fearless
2. Impavid
   All of the above

All of the above words are synonyms for the word heroic. Did you know about the word impavid?

1. 1
   2
2. 3

A hyperbola has two branches which form a symmetrical curve. These are produced by the section of a conical surface.

1. Catastrophic
   Perturbant
2. Tenacious

Her behavior was tenacious and unyielding. Someone who is tenacious is also quite stubborn.

1. Proof
   Justification
2. Either

Someone can be vindicated by providing either justification or proof. When you're vindicated, you're shown to be right.

1. Blithe
   Wary
2. Symbiotic

An impulse can lead to someone being spontaneous. Similarly, caution can lead to someone being wary.

1. Abdicate
   Profligate
2. Sonorate

It's possible to release an emotion. It's also possible to abdicate one's power. Monarchs or emperors might abdicate their power.

1. Retain
   Abstain
2. Obtain

Although everyone else ordered cake, the dieter decided to abstain. It must have been hard to watch everyone else eat cake.

1. Decimals
   Fractions
2. Both

Irrational numbers cannot be represented as decimals or fractions. Examples include π, √2, and e.

1. 10,000
   100,000
2. 1,000,000

100 x 1,000 = 100,000. Just remember to add up those zeros!

1. Vapid
   Arid
2. Frigid

The tundra can be described as gelid, or cold. The desert can be described as arid, or lacking water.

1. Asylum
   Prestige
2. Nomadism

The refugees sought asylum from their pernicious home country. Asylum is shelter from danger or hardship.

1. Botched
   Seismic
2. Linear

y = 5x + 3 is a great example of a linear equation. This is an algebraic equation in which each term is either a constant or the product of a constant and a single variable.

1. 20%
   10%
2. 5%

20% of 50% = 10%. Put that calculator away!

1. Roughness
   Exuberance
2. Both

Boisterousness can be characterized by a rough or exuberant spirit. Some sources will refer to this as an "animal spirit."

1. Brazen
   Prolific
2. Stalwart

Someone who is calm is also unflustered. Also, someone who is unrestrained is brazen.

1. Bijou
   Mini
2. Capacious

When something is bright, it's certainly not dim. Also, when something is small, it cannot be described as capacious.