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3 years ago

1 1/3+2 2/3 mixed number

2 answers:

4 0

$1\dfrac{1}{3}+2\dfrac{2}{3}=1+\dfrac{1}{3}+2+\dfrac{2}{3}=(1+2)+\left(\dfrac{1}{3}+\dfrac{2}{3}\right)=3+\dfrac{1+2}{3}\\\\=3+\dfrac{3}{3}=3+1=4$

alukav5142 [94]3 years ago

3 0

1-1/3 = 4/3

2-2/3 = 8/3

(4/3) + (8/3) = 12/3

But 12/3 = 4 .

The only way to make a mixed number out of 4 is to call it "4 and 0/3".

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valina [46]

Answer:

Step-by-step explanation:

Best answer would be D, nuclear transmutation/transmutation refers to "the action of changing or the state of being changed into another form" the word nuclear radiation is radioactive. it's a good guess I would say.

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2 years ago

What is 965,000,000,000,000 in scientific notation?

bogdanovich [222]

<h3>QUESTION:</h3>

What is 965,000,000,000,000 in scientific notation?

9.65×10−14

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<h3>ANSWER:</h3>

$\large \sf \orange{9.65 \times 10 {}^{14} } \sf \: is \: the \: scientific \: notation \: of \: 965000000000000$

Additional info: Remember that SCIENTIFIC NOTATION is in the form a × 10^b where 1 ≤ a < 10 and b is an integer.

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3 years ago

What quadratic expression represents (2x+5)(7-4x)

den301095 [7]

<h2>Answer :)</h2>

$\sf{(2x+5)(7-4x) }$

$\sf{2x(7-4x)+5(7-4x) }$

$\sf{14x-8x^{2}+35-20x }$

$\sf{ -8x^{2}-6x+35 }$

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3 years ago

Read 2 more answers

Please solve (X+2) 3 = (x-4) 5

lora16 [44]

Answer:

x= 13

Step-by-step explanation:

(X+2) 3 = (x-4) 5

distribute on both sides: 3x + 6 = 5x - 20

add 20 to both sides: 3x + 26 = 5x

subtract 3x from both sides: 26 = 2x

divide both sides by two: 13 = x

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3 years ago

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According to geologists, the San Francisco Bay Area experiences five earthquakes with a magnitude of 6.5 or greater every 100 ye

sveta [45]

Answer:

13.53% probability that no earthquakes with a magnitude of 6.5 or greater strike the San Francisco Bay Area in the next 40 years

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

$e = 2.71828$ is the Euler number

$\mu$ is the mean in the given time interval.

According to geologists, the San Francisco Bay Area experiences five earthquakes with a magnitude of 6.5 or greater every 100 years.

One earthquake each 100/5 = 20 years.

What is the probability that no earthquakes with a magnitude of 6.5 or greater strike the San Francisco Bay Area in the next 40 years?

40 years, so $\mu = 40/20 = 2$

This probability is P(X = 0).

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-2}*2^{0}}{(0)!} = 0.1353$

13.53% probability that no earthquakes with a magnitude of 6.5 or greater strike the San Francisco Bay Area in the next 40 years

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3 years ago