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Ann [662]
2 years ago
9

Help me with this question

Mathematics
1 answer:
MaRussiya [10]2 years ago
6 0

Answer:


Step-by-step explanation:


In kilograms, just move the decimal right before the first digit and multiply it by ten to the power of how many times you moved the decimal:

6.20 x 10^6

In grams, change 6,200,000 kg to g.  One kg is 1000 g, so divide  6,200,000 by 1000.  This would equal 6200 g.  Now, move the decimal right before the first digit and multiply it by ten to the power of how many times you moved the decimal:


6.20 x 10^3

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Which of the relations given by the following sets of ordered pairs is a function?
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If you bought a stock last year for a price of $139, and it has risen 5.4% since
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3 years ago
Find the values of sin2u, cos2u, and tan2u given the figure.
Vadim26 [7]

Givens

y = 2

x = 1

z(the hypotenuse) = √(2^2 + 1^2)  = √5

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Notes

One: Notice that you would normally rationalize the denominator, but you don't have to in this case.  The formulas are such that they perform the rationalizations themselves.

Two: Notice the sign on the cos(2u). The sin is plus even though the angle (2u) is in the second quadrant. The cos is different. It is about 126 degrees which would make it a negative root (9/25)

Three: If you are uncomfortable with the  tan, you could do fractions.

\text{tan(2u)} = \dfrac{\dfrac{4}{5}}{\dfrac{-3}{5} } =\dfrac{4}{5} *\dfrac{5}{-3} =\dfrac{4}{-3}

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3 years ago
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