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lions [1.4K]
3 years ago
7

What is the value of x?

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
4 0
I think the answer is C
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Multiply and give the answer in scientific notation: (2.3 x 10-3)(3 x 108) A) 6.9 x 105 B) 6.9 x 1011 C) 6.9 x 10-5 D) 6.9 x 102
Furkat [3]

Answer: A) is the right answer. 6.9\times10^{5}


Step-by-step explanation:

Given product : 2.3\times10^{-3}\times3\times10^8

To multiply above expression, first we need to combine like terms and then we need to use the law of exponents.

2.3\times3\times10^{-3}\times10^8\\=(2.3\times3)\times(10^{-3}\times10^8)\\=6.9\times10^{-3+8}......[\text{by law of exponents }a^n\cdot\ a^m=a^{m+n}]\\=6.9\times10^{5}

Thus, the answer is 6.9\times10^{5}.


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The opposite of -8 is 0 and the absolute value in 8

Step-by-step explanation:

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Mrs. Reed bought 48 items for her classroom. She bought some glue bottles. She bought 5 times as many pencils as she did bottles
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The speed of the driver is 200km/hr.

<h3>How to calculate the speed?</h3>

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It should be noted that speed is calculated as:

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