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3 years ago

Help me this assignment is due soon.

Mathematics

1 answer:

AlekseyPX3 years ago

6 0

So maybe it’s 5, it’s equivalent to the side with 6, just shorter

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What is the simplified form of the expression-4xy/3x<br><br> Show your work

kogti [31]

Answer:

-4y/3

Step-by-step explanation:

If we have -4xy/3x, we just cancel the x since it is in the numerator and denominator. That leaves us with just -4y/3

3 0

3 years ago

3 A set consisting of no element is

Andrews [41]

Answer:

The set is called a null set

Step-by-step explanation:

Because it has no members

8 0

3 years ago

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What is 1 + 1<br><br> Please give a detailed answer and I’ll crown

Ksivusya [100]

Answer:

1+1+2

1/10x10=1

(1/10x10)+(1/10x10)+2

or...

0.5x2=1

(0.5x2)+(0.5x2)=2

hope this helps lol

6 0

2 years ago

Read 2 more answers

One of the legs of a right triangle measures 9 cm and the other leg measures 16 cm.

aalyn [17]

Answer:

18.4 cm

Step-by-step explanation:

Using Pythagoras rule:

Hypotenuse =

$\sqrt{9 ^{2} + 16 ^{2} }$

= 18.4 cm

7 0

3 years ago

A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011. Four cases of this tumor occ

Shkiper50 [21]

Answer:

a) The mean number of cases is 0.14608 cases.

b) The probability that the number of cases is exactly 0 or 1 is 0.990.

c) The probability of more than one case is 0.010

d) No, because the probability of more than one case is very small

Step-by-step explanation:

We can model this problem with a Poisson distribution, with parameter:

$\lambda=r*t=0.000011*13,280=0.14608$

a) The mean amount of cases is equal to the parameter λ=0.14608.

b) The probability of having 0 or 1 cases is:

$P(k=0)=\frac{\lambda^0 e^{-\lambda}}{0!}=\frac{1*0.864}{1} =0.864\\\\ P(k=1)=\frac{\lambda^1 e^{-\lambda}}{0!}=\frac{0.14608*0.864}{1} =0.126\\\\P(k\leq1)=0.864+0.126=0.990$

c) The probability of more than one case is:

$P(k>1)=1-P(k\leq 1)=1-0.990=0.010$

d) The cluster of 4 cases can not be due to pure chance, as it is a very high proportion of cases according to the average rate. Just having more than one case has a probability of 1%.

7 0

3 years ago