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3 years ago

11

What is 2,871,000,000 in scientific notation

2 answers:

lbvjy [14]3 years ago

7 0

Answer:

2.871 * 10^9

Step-by-step explanation:

For some reason, brainly deleted my answer even though I provided an explanation AND used detail. The reason this is the answer is because you take away all the zeros, resulting in 2871 * 10^6. Then, you take away 3 more places to make it 2.871 * 10^6 * 10^3. That simplifies to 2.871 * 10^9. Scientific notation is like a simplified form, but using exponents that have a base of 10.

Nimfa-mama [501]3 years ago

3 0

Answer:

2.871*10^9

Step-by-step explanation:

add a decimal point at the end of the number ( 2,871,000,000.) then count how many places it takes to move the decimal point between the first and second number (2.8) then write the rest of the numbers higher than "0" after, giving you the 2.871

to show that the number written is in scientific notation you add 10 to the power of the amount of times you moved the decimal place. In this case, because the decimal point was moved a total of 9 times, it would be 10 to the 9th power (10^9).

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Step-by-step explanation:

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3 years ago

On mars if you hit a baseball, the height of the ball

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Rita is hiking along a trail that is 13.8 miles long. So far she has hiked along one-tenth of the trail.

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Rita has hiked 1.38 miles so far.

Step-by-step explanation:

Given,

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3 years ago

Suppose flights on standard routes between two given cities use on average 3,087 gallons of kerosene with standard deviation of

Radda [10]

Answer:

15.866%

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 3,282 gallons of kerosene

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σ is the population standard deviation = 195 gallons

For x > 3282 gallons

z = 3282 - 3087/195

z = 1

Probability value from Z-Table:

P(x<3282) = 0.84134

P(x>3282) = 1 - P(x<3282) = 0.15866

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2 years ago

Sophia scored 92% in a math test. if the test had 50 question how many did she get right

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Answer: 46

Step-by-step explanation:

percentage scored = 92

number of correct question = x

total number of questions = 50

The formula for calculating the percentage scored

= number of correct question / total number of questions x 100

That is

92 = $\frac{x}{50}$ x $\frac{100}{1}$

$92 = \frac{100x}{50}$

cross multiplying :

$100x = 92$ x $50$

$100x = 4600$

dividing through by 100 , we have

$x = 46$

Therefore, she got 46 questions right

7 0

3 years ago