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3 years ago

Find the value of -3/8 x 8/15=

Mathematics

2 answers:

Illusion [34]3 years ago

7 0

we have -3/8 x 8/15 = -3/8 x 8/ (3x5) = -1/5

ok done. thank to me :>

g100num [7]3 years ago

5 0

Answer:

-1/5

Step-by-step explanation:

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2 years ago

According to an article in Newsweek, the rate of water pollution in China is more than twice that measured in the US and more th

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Answer:

(a) 0.119

(b) 0.1699

Solution:

As per the question:

Mean of the emission, $\mu = 11.7$ million ponds/day

Standard deviation, $\sigma = 2.8$ million ponds/day

Now,

(a) The probability for the water pollution to be at least 15 million pounds/day:

$P(X\geq 15) = P(\frac{X - /mu}{\sigma} \geq \frac{15 - 11.7}{2.8})$

$P(X\geq 15) = P(Z \geq 1.178)$

$P(X\geq 15)$ = 1 - P(Z < 1.178)

Using the Z score table:

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(b) The probability when the water pollution is in between 6.2 and 9.3 million pounds/day:

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3 years ago

Question 2 (20 points)

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Answer:

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Step-by-step explanation:

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3 years ago