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Andrew [12]
2 years ago
12

Scientific notation is written in the form a*10^n. What must be true about the a value?

Mathematics
2 answers:
Rama09 [41]2 years ago
8 0

Answer:

It has to be a single digit between 1 and 10

-Dominant- [34]2 years ago
4 0
It has to be a single digit between 1 and 10
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A bus travels at a speed of 80km per hour . what is the distance it travels by 15 mins.
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The bus will travel 20km within 15 minutes

Step-by-step explanation:

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The answer is 93 to 31 :)
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Help!!!! Asap!<br> I’m not understanding this I really need help !!! Please
jenyasd209 [6]

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Opposite Angles Theorem

Step-by-step explanation:

All opposite angles are congruent, meaning that two angles created by intersecting lines that oppose eachother are equal in size. The theorem goes by different names, so I don't know exactly what your teacher is asking for, but I hope I could help.

5 0
2 years ago
In the 18th century, the Chevalier de Mere asked Blaise Pascal to compare the probabilities of two events. Below, you will compu
Llana [10]

Answer:

The probability of obtaining at least one 6 in four rolls of a fair die is 0.5177

The probability of obtaining at least one double six in 24 rolls of a fair die is 0.4914

Step-by-step explanation:

Consider the provided information.

Part (A) What is the probability of obtaining at least one 6 in four rolls of a fair die?

The probability of getting a six in a throw of a fair die is = 1/6

The probability of not getting a six is = 5/6

Let X be the favorable outcome, that at least one 6.

To find the probability of at least one 6, subtract the probability that in 4 throws of a die no 6 is obtained from 1.

1-(\frac{5}{6})^4=0.5177

Hence, the probability of obtaining at least one 6 in four rolls of a fair die is 0.5177

Part (B) If a pair of fair dice is tossed 24 times, what is the probability of at least one double six?

Throwing two die at a time then the probability of two six is = 1/36

Throwing two die at a time then the probability of not getting two six is  = 35/36

To find the probability of at least one double 6, subtract the probability that in 24 throws of a die no 6 is obtained from 1.

1-(\frac{35}{36})^{24}=0.4914

Hence, the probability of obtaining at least one double six in 24 rolls of a fair die is 0.4914

4 0
3 years ago
What are five examples you can think of where you would expect to see scientific notation used? Be specific in your examples.
lina2011 [118]
1.) 7 x109= Population of the world is around 7 billion written out as 7,000,000,000
2.) 1.08 x109= Approximate speed of light is 1080 million km per hour or 1,080,000,000 km per hour
3.) 2.4 x105= Distance from the Earth to the moon is 240 thousand miles or 240,000 miles
4.) 9.3 x107= Distance from the Earth to the sun is 93 million miles or 93,000,000 miles
5.) 3.99 x1013= Distance from the sun to the nearest star (Proxima Centauri) is 39,900,000,000,000 km
6.) 9.4605284 ×1015= Distance light travels in a year is less than 9.5 trillion kilometers, or exactly 9,460,528,400,000,000 km
7.) 1.4 x108= Amount of water surface area on the Earth is 140 million square miles or 140,000,000 square miles
8.) 1.0 x1014= Approximate number of cells in the human body is 100 trillion or 100,000,000,000,000
9.) 1.332 x10-3= Density of oxygen is 1332 millionths g per cc or .001332 g per cc
10.) 2.4 x10-3= Diameter of a grain of sand is 24 ten-thousandths inch or .0024 inch
7.53 x10-10= Mass of a dust particle is 0.000000000753 kg
11.) 9.1093822×10-31= Mass of an electron is 0.00000000000000000000000000000091093822 kg
12.) 4.0 x10-7= Length of the shortest wavelength of visible light (violet) is 0.0000004 meter
3 0
3 years ago
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