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3 years ago

24.2 rounded to the nearest tenth

2 answers:

6 0

When you perform calculations you normally round your answer to the least number of significant digits of the numbers used in your calculator. In this case they are both 6. If you divide and round in this matter you will get 
24.2459 just an example
so basically it would be 24 since 2 is less than 5

vampirchik [111]3 years ago

3 0

24.0 is the real answer please ne carfukl

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If I did the math right the answer should be 1,750

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3 years ago

Read 2 more answers

Which number line represents the solution |2x|-12 =

Bond [772]

Answer:

Third option, last one

Step-by-step explanation:

Let's solve for x first.

|2x| - 12 = -2

|2x| = 10

2x = 10 or -2x = 10

x = 5 or x = -5

The number line that represents this is the last one.

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814.795

Step-by-step explanation:

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3 years ago

2 Find the radius and diameter of a circle of area: a) 6.16 cm² b) 13.86 cm²

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Answer:

Area = 6.16cm^2

by using Formula,

A=πr^2

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r=1.4cm

now,

D=2*r

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=2.8 CM

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3 years ago

An agronomist wishes to estimate, to within one percentage point, the proportion of a new variety of seed that will germinate wh

Galina-37 [17]

Answer:

The minimum sample size must be 1118 to have margin of error within one percentage point.

Step-by-step explanation:

We are given the following in the question:

Germination rate = 97% = 0.97

$\hat{p} = 0.97$

Margin of error = 1% = 0.01

We have to find the minimum sample size for a 95% confidence interval.

Formula for margin of error:

$z_{stat}\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$1.96\times \sqrt{\dfrac{0.97(1-0.97)}{n}}\leq 0.01\\\\\sqrt{n} \geq 1.96\times \dfrac{\sqrt{0.97(1-0.97)}}{0.01}\\\\\sqrt{n}\geq 33.4350\\\Rightarrow n \geq 1117.9056$

Rounding off to integer,

$n = 1118$

Thus, the minimum sample size must be 1118 to have margin of error within one percentage point.

4 0

3 years ago