Select the PROPER Scientific Notation for the following value. 659,000,000,000 Question 1 options: 659 × 109 65.9 × 1010 6.59 × 1011 0.659 × 1012
Answers
The proper notation may depend on where you are. In the US, we like there to be one non-zero digit to the left of the decimal point, hence the appropriate form is ...
... 6.59×10¹¹
_____
Elsewhere, the "proper" form may require the first non-zero digit be placed to the right of the decimal point, as in 0.659×10¹². This is also the form used by some computer languages.
In Engineering usage, quite often the desired form is one that has the exponent be a multiple of 3, so the appropriate forms would be 659×10⁹ or 0.659×10¹².
Sometimes when you're doing problems using numbers in scientific notation, it can be convenient to scale the operands so the result comes out with no need for rescaling. For example, if you were to divide 100 by this number, you might write ...
... 100/(65.9×10¹⁰) ≈ 1.517×10⁻¹⁰
Without this "pre-scaling", you would get
... (10²)/(6.59×10¹¹) ≈ 0.1517×10⁻⁹ = 1.517×10⁻¹⁰
which requires rescaling the answer.
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Given: 44 - 2(3x + 4) = -18Prove: x = 9
Answers
Answer:
12.5
Step-by-step explanation:
If the number of workers injured in each accident is independent of the number of accidents that occur, then the expected number of workers injured in a week equals the expected number of accidents per week times the expected number of workers injured in each accident.
But the expected number of workers injured in each accident is precisely the average or mean, so
Expected number of workers injured in a week = 5*2.5 = 12.5.
Or in other words, in 10 weeks there will probably be 125 workers injured.
Final answer:
The expected number of workers injured in a week at the industrial plant is 12.5, calculated by multiplying the expected number of accidents per week (5) by the expected number of workers injured per accident (2.5).
Explanation:
The expected number of accidents at an industrial plant per week is given as 5 and the mean number of workers injured per accident is given as 2.5. As the number of workers injured per accident is stated to be independent from the number of accidents that occur, we can merely multiply the two expected values to find the overall expected value of workers injured in a week.
So, Expected number of workers injured per week = Expected number of accidents per week * Expected number of workers injured per accident = 5 * 2.5 = 12.5.
This implies that, on average, we can expect 12.5 workers to be injured at the industrial plant per week.
Learn more about Expectation of Random Variables here:
#SPJ3
Answers
Answer:
24 units
Step-by-step explanation:
Given is a circle with two chord BE and CD
BE and CD intersect at A
By circle chords intersection theorem we have
DA*AC = EA*AB
i.e. 8(15) = 5(AB)
Divide by 5 both the sides
AB =8(15)/5 = 8(3) = 24 units
Verify:
Let us check now whether chord intersection theorem is satisfied.
DA*AC = 8(15) = 120
EA*AB = 5(24) = 120
Since these two equal, we verify that answer is right.
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Answers
Answer:
Anything above 9
Step-by-step explanation:
63/7=9
1/6y+1/3(y+3
1/6y+1/6(y+12)-2
1/3y+1/3(6-y)
Answers
Answer:
1/6y+1/6(y+12)- 2
Step-by-step explanation:
- Distribute
through the parentheses :
- Remove the opposites and calculate ( since two opposites add up to zero remove them from the expression) :
- Calculate the sum :
y
Solution : y
Answer:
The answer is 1/6y+1/6(y+12)-2
Answers
71,491 + 19,326 = 90,817 points.
So Leah scored a total of 90,817 points.