Work out the value of 5x-2y when x=-2 and y=-3

1 answer:

max2010maxim [7]2 years ago

3 0

I guess this how it would go
(5)(−2)−(2)(−3)

So your answer should be −4

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The distance from the Earth to Saturn averages 886 million (886,000,000) miles. Write this number in scientific notation.

kiruha [24]

Answer:

8.86 x 10^8

Step-by-step explanation:

Scientific notation means that you represent the standard form of a number like this:

number less than ten x 10 to the ___ power

In standard form, the decimal point is at the end of 886,000,000.

You have to move the decimal point to the left until it creates a number less than 10, but greater than 1:

8.86,000,000

You count how many decimal places you moved it. In this case, it is 8.

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