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How many possible orders are there with these numbers - 3 5 7 and 9?
As there are 4 numbers and they are all different, they can be arranged in: 4 choices for first number, leaving 3 choices for the second number for each choice of the first, leaving 2 choices for the third number for each of the choices of the first two, leaving 1 choice for the last number for each of the choices for the first three giving: number of choices = 4 x 3 x 2 x 1 = 24 possible orders in total.
If there are 6 contestants in a race the number of different ways the first and second place winners is?
6 X 5 = 30: There are 6 possible winners, and with the winner chosen, there remain 5 possible second place finishers. The choices are independent, so that the number of possible choices is the product of the two individual place choices.
How many combonations are there 6 numbers?
The answer is 6! which is 6*5*4*3*2*1 = 720. Think of it as the first number you have 6 choices, the next number you have 5 choices, the next number you have 4 choices and so forth.
Find the number of different choices that can be made from 3 apples 4 bananas and 5 mangoes if at least one fruit is to be chosen?
12c1=12
How many different ways can you arrange the letters in number?
Assume you have 6 spots shown below: _ _ _ _ _ _ In the first spot, you have 6 letters to choose from. In the second spot, you have 5 letters to choose from because you already used one. Similarly, in the remaining spots, you will have 4, 3, 2, and 1 letters to choose from. So you have 6 choices * 5 choices * 4 choices * 3 choices * 2 choices * 1 choice = 720 possibilities
How is atomic number used to distinguish one element another?
Every element has a different number of protons and electrons in each atom, and this amount is what the atomic number tells you.
How many possible orders are there with these numbers - 3 5 7 and 9?
As there are 4 numbers and they are all different, they can be arranged in: 4 choices for first number, leaving 3 choices for the second number for each choice of the first, leaving 2 choices for the third number for each of the choices of the first two, leaving 1 choice for the last number for each of the choices for the first three giving: number of choices = 4 x 3 x 2 x 1 = 24 possible orders in total.
What does the mass number tell about an isotope?
The mass number of an isotope tells you the total number of protons and neutrons in the nucleus of that atom. It is used to distinguish different isotopes of an element, as isotopes of the same element have the same number of protons but different numbers of neutrons.
Why are atoms generally neutral?
Because it is ions that are charged. Basically the same reason why we distinguish mammels from reptiles: they are different. Atoms/neutrals are different from ions/not-neutrals because they are different. equal number of protons and neutrons equal number of protons and neutrons
What are some popular choices in TV tuners for PC?
There are a number of different companies that manufacture TV tuner cards for PCs. Popular choices for these cards are Hauppage, Zinwell, AVerMedia, and Siig.
How is atomic number used to distinguish one element from another?
The atomic number is the number of protons in an atom, and each element has a unique atomic number. This means that the atomic number is used to identify and distinguish one element from another. The number of protons in an atom determines its chemical properties and its placement on the periodic table.
The atoms are distinguish from an atom by the number?
of protons
How are elements identified in terms of their atoms?
Elements are identified based on the number of protons in their atoms, which is known as the atomic number. Each element has a unique atomic number, allowing scientists to distinguish between different elements.
If there are 6 contestants in a race the number of different ways the first and second place winners is?
6 X 5 = 30: There are 6 possible winners, and with the winner chosen, there remain 5 possible second place finishers. The choices are independent, so that the number of possible choices is the product of the two individual place choices.
What is the definition of isotope number?
The isotope number refers to the total number of protons and neutrons in the nucleus of an atom of a specific element. It is used to distinguish between different isotopes of an element based on their atomic mass.
How many different ways can you write a four digit number?
Assuming that zero cannot be used for the first digit then this can be selected from numbers 1 - 9 (9 choices), and the 2nd, 3rd and 4th digits from 0 - 9 (10 choices). The total number of different ways is : 9 x 10 x 10 x 10 = 9000.
How many combonations are there 6 numbers?
The answer is 6! which is 6*5*4*3*2*1 = 720. Think of it as the first number you have 6 choices, the next number you have 5 choices, the next number you have 4 choices and so forth.
