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Ne4ueva [31]
3 years ago
12

(4*10^2)(2*10^5) written in scientific notation

Mathematics
2 answers:
Akimi4 [234]3 years ago
8 0
<span>(4*10^2)(2*10^5)
= 8 x 10^7

hope it helps</span>
vagabundo [1.1K]3 years ago
7 0
4x10^2 = 400

2x10^5 = 200,000

Let me know if this helped?..
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M is the midpoint of CD. Given the coordinates of one endpoint C(10,-5) and the midpoint M(4, 0), find the coordinates of the ot
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Answer:

D(-2, 5).

Step-by-step explanation:

We are given that M is the midpoint of CD and that C = (10, -5) and M = (4, 0).

And we want to determine the coordinates of D.

Recall that the midpoint is given by:

\displaystyle M = \left(\frac{x_1 + x_2}{2} , \frac{y_1 + y_2}{2}\right)

Let C(10, -5) be (<em>x</em>₁<em>, y</em>₁) and Point D be (<em>x</em>₂<em>, y</em>₂). The midpoint M is (4, 0). Hence:

\displaystyle (4, 0) = \left(\frac{10+x_2}{2} , \frac{-5+y_2}{2}\right)

This yields two equations:

\displaystyle \frac{x_2 + 10}{2} = 4\text{ and } \frac{y_2 - 5}{2} = 0

Solve for each:

\displaystyle \begin{aligned}x_2 + 10 &= 8 \\ x_2 &= -2 \end{aligned}

And:

\displaystyle \begin{aligned} y_2 -5 &= 0 \\ y_2 &= 5\end{aligned}

In conclusion, Point<em> </em>D = (-2, 5).

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

Multiply numerator by numerator and denominator by denominator.

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2 years ago
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