. Using definitions which are for math, define the following vocabulary words for the upcoming
section of Exponents.
1. Exponential form:
2. Exponent:
3. Base number:
4. Power:
5. Squaring a number:
6. Scientific notation:
7. Zero exponent:
8. Perfect square:

1. Exponential form: Exponential notation is an alternative method of expressing numbers. Exponential numbers take the form an, where a is multiplied by itself n times. A simple example is 8=23=2×2×2. In exponential notation, a is termed the base while n is termed the power or exponent or index.

2. Exponent: An exponent is a number or letter written above and to the right of a mathematical expression called the base.  It indicates that the base is to be raised to a certain power.  x is the base and n is the exponent or power.

3. Base number: A number base is the number of digits or combination of digits that a system of counting uses to represent numbers. A base can be any whole number greater than 0. The most commonly used number system is the decimal system, commonly known as base 10.

4. Power: A power is the product of multiplying a number by itself.

5. Squaring a number: Add the number to itself. Multiply the number by itself. Divide the number by itself.

6. Scientific notation: Scientific Notation is the expression of a number n in the form a∗10b. where a is an integer such that 1≤|a|<10. and b is an integer too. Multiplication: To multiply numbers in scientific notation, multiply the decimal numbers. Then add the exponents of the powers of 10.

7. Zero exponents: Therefore, it is proven that any number or expression raised to the power of zero is always equal to 1. In other words, if the exponent is zero then the result is 1. The general form of zero exponent rule is given by: a 0 = 1 and (a/b) 0 = 1.

8. Perfect square: The first 12 perfect squares are: {1, 4, 9, 25, 36, 49, 64, 81, 100, 121, 144...} Perfect squares are used often in math. Try to memorize these familiar numbers so that you can recognize them as they are used in many math problems. The first five squares of the negative integers are shown below.

Explanation:

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.