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Ierofanga [76]
3 years ago
5

How do write 412.638 using expanded form using decimals

Mathematics
1 answer:
Radda [10]3 years ago
7 0
412.638 using expanded form using decimals is :
4 x 100 + 1 x 10 + 2 x 1 + 6 x 0.1 + 3 x 0.01 + 8 x 0.001 Hope this helped you!
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Which of the following complete the proof above?
svp [43]

Answer:

(A)

Step-by-step explanation:

To be honest, since all of them are different, as long as you get the first one right, you will get the others right. A is your answer, for the following reasons:

Reflexive Property: The Reflexive property states that the mirrored version of itself will always be congruent with itself. Generally, to make it easier, they will write it opposite (as they did in the given proof):

<em>line</em> AC ≅ <em>line</em> CA

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In a survey of 300 T.V. viewers, 40% said they watch network news programs. Find the margin of error for this survey if we want
bixtya [17]

Answer:

<h2>0.05543</h2>

Step-by-step explanation:

The formula for calculating the margin of error is expressed as;

M.E = z * \sqrt{\frac{p*(1-p)}{n} } where;

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n is the sample size = 300

Substituting this values into the formula will give;

M.E = 1.96*\sqrt{\frac{0.4(1-0.4)}{300} }\\ \\M.E = 1.96*\sqrt{\frac{0.4(0.6)}{300} }\\\\\\M.E = 1.96*\sqrt{\frac{0.24}{300} }\\\\\\M.E = 1.96*\sqrt{0.0008}\\\\\\M.E = 1.96*0.02828\\\\M.E \approx 0.05543

Hence, the margin of error for this survey if we want 95% confidence in our estimate of the percent of T.V. viewers who watch network news programs is approximately 0.05543

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3 years ago
Please help i don't have enough time!! PISA: Exchange rate Mei-ling from Singapore has been preparing to go to South Africa for
solong [7]

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3 years ago
If triangle abc is similar to triangle edc find the value of x
svetoff [14.1K]

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Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{BC}{DC} = \frac{AC}{EC} , substitute values

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168x - 280 = 160x - 160 ( subtract 160x from both sides )

8x - 280 = - 160 ( add 280 to both sides )

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2 years ago
Surface Area of Pyramids
iren [92.7K]

9514 1404 393

Answer:

  288 km²

Step-by-step explanation:

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The area formulas for a square and a triangle are ...

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