The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.
Answer:
In a word processing document or on a separate piece of paper, use the guide to construct a two-column proof proving that lines l and m are parallel.
Answer:
<h2>
66 different ways </h2>
Step-by-step explanation:
This is a combination question. Combination has to do with selection. For example if r objects are to be selected from n pool of oblects, this can be done in nCr number of ways.
nCr = n!/(n-r)r!
According to the question, if a radio show can only play 10 records out of 12 records available, this can be done in 12C10 number of ways.
12C10 = 12!/(12-10)!10!
= 12!/2!10!
= 12*11*10!/2*10!
= 12*11/2
= 6*11
= 66 different ways
Answer:
Divide the first number of the dividend (or the two first numbers if the previous step took another digit) by the first digit of the divisor. Write the result of this division in the space of the quotient. Multiply the digit of the quotient by the divisor, write the result beneath the dividend and subtract it.Jun
Step-by-step explanation:
pls brainlist
Answer:
54/7
Step-by-step explanation:
- Use the KCF method - Keep, Change, Flip
- 6 divided by 7/9 is just 6/1 divided by 7/9
- You can keep 6/1 as the way it is
- Next, you change the sign from division to multiplication
- Lastly, you flip 7/9 to 9/7
- It will now change from 6 divided by 7/9 to 6/1 x 9/7
- You now multiple 9 x 6 which is 54 and divide by 7
- You cannot simplify further so the answer is 54/7
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