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3 years ago

Change .00345 to a percent. A) .345% B) 3.45% C) 34.5% D) 345%

Mathematics

2 answers:

natali 33 [55]3 years ago

7 0

Answer:

Step-by-step explanation:

When converting from a decimal to a percent, you always multiply the decimal by 100, and in this case, multiplying the number 0.00345 gets us 0.345. This number is the percent, in this case 0.345%, or answer choice A.

Natasha2012 [34]3 years ago

5 0

Answer:

0.345%

Step-by-step explanation:

you multiply is by 100

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Which expression is equivalent to the following complex fraction?

Virty [35]

Answer:

$\dfrac{-4x+7}{2(x-2)}$

Step-by-step explanation:

Write the terms of numerator and denominator using a common denominator.

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30 POINTS please help me!

Stels [109]

To prove a similarity of a triangle, we use angles or sides.

In this case we use angles to prove

∠ACB = ∠AED (Corresponding ∠s)
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∠ADE = ∠FED (Alternate ∠s)

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Now we know the similarity in the triangles.

But it is necessary to write the similar triangle according to how the question ask.

The question asks " ∆ABC is similar to ∆____. " So we find ∠ABC in the prove.

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∴ ∆ABC is similar to ∆FED

Similarly, if the question asks " ∆ACB is similar to ∆____. "
We answer as ∆ACB is similar to ∆FDE.

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3 years ago

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nirvana33 [79]

Answer:

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Step-by-step explanation:

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3 years ago

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Suppose that prices of recently sold homes in one neighborhood have a mean of $215,000 with a standard deviation of $8900. Using

bonufazy [111]

Answer:

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Step-by-step explanation:

Chebyshev Theorem

The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by $100(1 - \frac{1}{k^{2}})$ .

In this question:

Mean of $215,000, standard deviation of $8900.

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215000 + 2*8900 = 232800

Within 2 standard deviations of the mean, so:

The minimum percentage of recently sold homes with prices between $197,200 and $232,800 is 75%.

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Answer:

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