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3 years ago

Is an equation with an integer coefficient will always have an integer solution true or false?

1 answer:

eduard3 years ago

6 0

An equation with an integer coefficient will always have an integer solution. Integers are whole numbers ( positive and negative and zero ). One example of equation:
4 x = 5 ( 4 is an integer coefficient )
x = 5 : 4 = 1.25 ( not an integer )
Answer:
This is false.

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A flying disc has a circumference of 81.64 centimeters. What is the area of the flying disc? Use 3.14 for pi

Daniel [21]

9514 1404 393

Answer:

530.66 cm²

Step-by-step explanation:

A formula for the area of the circular disc can be written as ...

A = C²/(4π)

A = (81.64²)/(4·3.14) = 6665.0896/12.56

A = 530.66 . . . . square centimeters

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3 years ago

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Naya [18.7K]

Answer:

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3 years ago

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Mopeds (small motorcycles with an engine capacity below 50 cm3) are very popular in Europe because of their mobility, ease of op

Mashcka [7]

Answer:

a) P(X<50)=0.9827

b) P(X>47)=0.4321

c) P(-1.5<z<1.5)=0.8664

Step-by-step explanation:

We will calculate the probability based on a random sample of one moped out of the population, normally distributed with mean 46.7 and standard deviation 1.75.

a) This means we have to calculate P(x<50).

We will calculate the z-score and then calculate the probability accordign to the standard normal distribution:

$z=\dfrac{X-\mu}{\sigma}=\dfrac{50-46.7}{1.75}=\dfrac{3.7}{1.75}=2.114\\\\\\P(X$

b) We have to calculatee P(x>47).

We will calculate the z-score and then calculate the probability accordign to the standard normal distribution:

$z=\dfrac{X-\mu}{\sigma}=\dfrac{47-46.7}{1.75}=\dfrac{0.3}{1.75}=0.171\\\\\\P(X>47)=P(z>0.171)=0.4321$

c) If the value differs 1.5 standard deviations from the mean value, we have a z-score of z=1.5

$z=\dfrac{(\mu+1.5\sigma)-\mu}{\sigma}=\dfrac{1.5\sigma}{\sigma}=1.5$

So the probability that maximum speed differs from the mean value by at most 1.5 standard deviations is P(-1.5<z<1.5):

$P(-1.5$

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3 years ago

(7×4)×What equals 280. I need help with this kind of math. Trying to help my 10 year old daughter.

Blizzard [7]

It's 10.

7*4=28.

280/28 = 10.

Hope this helps.

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3 years ago

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What is the total number of different 10-letter arrangements that can be formed using the letters in the word FORGETTING?

velikii [3]

Answer:

1814400

Step-by-step explanation:

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2 years ago