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3 years ago

In which number is the place value of 5 equal to one tenth of the place value of the 5 in 6.85

Mathematics

2 answers:

serg [7]3 years ago

6 0

Hello

The place value of the 5 in 6.85 is in the thousandths place. The 8 would be the tenths place.

have a nice day

Usimov [2.4K]3 years ago

3 0

It would be 8 in tenths place hope this helps

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Allushta [10]

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Now completing the square.

$(x^2+10x)+9=0\\(x^2+10x+25)+9-25=0\\(x+5)^2-16=0\\(x+5)^2=16$

(x+5)² = 16 is the rewritten equation... For first question btw.

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4 years ago

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Alja [10]

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Rational

Integer

Whole

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Integer:

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Whole:

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3 years ago

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Alenkasestr [34]

Answer:

Approximate probability that the number of households that use the Internet for banking in a sample of 1000 is less than or equal to 130 is less than 0.0005% .

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We are given that let X be the number that do some or all of their banking on the Internet.

Also; Mean, $\mu$ = 310/1000 or 0.31 and Standard deviation, $\sigma$ = 14.63/1000 = 0.01463 .

We know that Z = $\frac{X-\mu}{\sigma}$ ~ N(0,1)

Probability that the number of households that use the Internet for banking in a sample of 1000 is less than or equal to 130 is given by P(X <= 130/1000);

P(X <=0.13) = P( $\frac{X-\mu}{\sigma}$ <= $\frac{0.13-0.31}{0.01463}$ ) = P(Z <= -12.303) = P(Z > 12.303)

Since this value is not represented in the z table as the value is very high and z table is limited to x = 4.4172.

So, after seeing the table we can say that this probability is approximately less than 0.0005% .

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3 years ago