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3 years ago

Convert 65,000,000 to scientific notation.

Mathematics

2 answers:

uranmaximum [27]3 years ago

7 0

6.5x10^7
count the decimal places over, with the first being zero

NARA [144]3 years ago

7 0

In order to get the decimal point between the 6 and 5, you must shift the point 7 places left. This means that you need a 7 in the exponent for 10. Therefore, your answer is 6.5 x 10^7, or B.

Hope this helps!

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Answer:

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Step-by-step explanation:

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2 years ago

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Flura [38]

Answer:

I think is 15.39 kilometers

Step-by-step explanation:

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2 years ago

Chloe and Libby want to tie Ryan to a bunch of approximately spherical helium balloons of diameter 0.3m. The volume of each ball

dem82 [27]

Answer: Aproximately 2,525 balloons

Step-by-step explanation:

1. Find the volume of a balloon with the formula given in the problem, where $r$ is the radius ( $r=\frac{0.3m}{2}=0.15m$ ), then:

$V=4(0.15m)^{3}=0.0135m^{3}$

2. Convert the volume from m³ to lliters by multiplying it by 1,000:

$V=0.0135m^{3}*1000=13.5L$

3. You know that that 1 liter of helium can lift 1 gram and that Ryan weighs 5 stone and 5 pounds. So you must make the following conversions:

1 g=0.0022 lb

From 5 stones to pounds

$(5stone)(\frac{14pounds}{1stone})=70pounds=70lbs$

4. Then Ryan's weigh is:

5lb+70lb=75lb

5. Then, if 1 liter of helium can lift 0.0022 lb, to lift 75 lb (which is the weight of Ryan) they need:

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6. Then, to calculate the aproximated number of balloons they need to make him float (which can call $n$ ), you must divide the liters of helium needed to lift the weight of Ryan by the volume of a balloon, then the result is:

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Answer:

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2 years ago

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Answer:

It would take 10 years for the given sum of money be doubled at the given simple interest rate.

Step-by-step explanation:

A 10% interest would be added to the the principal amount after each year. So the interest would reach 100% i.e. equal to the principal amount in 10 years.

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