While writing in scientific notation we use the following rule:
Rule 1: Bring the decimal point one digit before extreme left .
Rule 2: Count the number of digits moved to left and raise 10 to the power of that number.
We are given the number 86,940 m
Applying rule 1:
here decimal initially is at the end after 0 , 86940. m
Now we move it toward left after 8,
8.6940
Applying rule 2:
We have moved 4 digits to the left so we raise 10 to the power 4 ,
8.6490 * 10⁴
Answer: 86490 will become 8.6490 * 10⁴ in scientific notation.
Answer:
16x^2 - 1 --> (4x-1)(4x+1)
16x^2 - 4 --> 4 (2x-1)(2x+1)
4x^2 - 9 --> (2x-3)(2x+3)
4x^2 - 1 --> (2x - 1) (2x + 1)
Step-by-step explanation:
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Slope is undefined.
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