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Earn +20 ptsQ: How do you write 2.1 million in scientific notation?
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What is 2 trillion times 3 billion written in scientific notation?
10^0=1, 10^1=10, 10^2=100, 10^3=1000 etc trillion = 10^12, billion = 10^9 answer: 2x10^12 x 3x10^9 = 6x10^21
What number is less than or equal to 23?
23 and all numbers less than 23 is your answer. I would say to write it down that the answer is { 23, 22 21........... }
What is the simplest radical from of the square root of 84?
First note that 84=4x21 and 4 is a perfect square. So square root of (84)=square root (4x21)=Square root (4) Square root (21)= 2 multiplied by the square root of 21. You can also write this using rational exponents, but this is not in radical form. It is an equivalent expression, however. 2 x (21)1/2
2x-3 equals 10x plus 21?
2x-3=10x+21 2x-3-2x=10x+21-2x -3=8x+21 -3-21=8x+21-21 -24=8x -3=x
What are the divisors of the number 21?
The divisors of 21 are: 1, 3, 7, 21.
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