When the Sun Crosses the Celestial Equator, and Day and Night

question 10

Multiple Choice

When the Sun crosses the celestial equator, and day and night are of equal length around the globe, it is the time of the___________.

• A) equinox
• B) aphelion
• C) solstice
• D) perihelion

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Definitions:

Decimal Notation

A way of expressing numbers that uses a decimal point to separate the whole part from the fractional part.

Expression

A combination of symbols and numbers that represent a mathematical operation or relation.

Difference

The result of subtracting one number from another, or the operation of subtraction itself.

Polynomials

Algebraic expressions that consist of variables and coefficients, combined using only addition, subtraction, multiplication, and non-negative integer exponents.