2 years ago

Help is needed please

Mathematics

1 answer:

Masja [62]2 years ago

6 0

The answer is 30a-9b+23c

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Mary wants to find this product. 58 x 20 How can Mary find the product? A. 0 +16 + 100 B. 0 + 160 + 1000 . C. 58 + 16 + 100 D. 5

Fittoniya [83]

Answer:

Step-by-step explanation:

58×20=1160

0+160+1000=1160

8 0

3 years ago

The number of typing errors made by a typist has a Poisson distribution with an average of two errors per page. If more than two

wlad13 [49]

Answer: 0.6767

Step-by-step explanation:

Given : Mean = $\lambda=2$ errors per page

Let X be the number of errors in a particular page.

The formula to calculate the Poisson distribution is given by :_

$P(X=x)=\dfrac{e^{-\lambda}\lambda^x}{x!}$

Now, the probability that a randomly selected page does not need to be retyped is given by :-

$P(X\leq2)=P(0)+P(1)+P(2)\\\\=(\dfrac{e^{-2}2^0}{0!}+\dfrac{e^{-2}2^1}{1!}+\dfrac{e^{-2}2^2}{2!})\\\\=0.135335283237+0.270670566473+0.270670566473\\\\=0.676676416183\approx0.6767$

Hence, the required probability :- 0.6767

6 0

3 years ago

Help please! any1 know this

worty [1.4K]

The only option that fits is E, because:

f(10)=4×10+10=50

8 0

2 years ago

The population of city is 2500 if the number of males is 240 more than females how many males and females are there in the city?

Blizzard [7]

There are 1130 females. There are 1370 males. What I did was take 2500 and subtracted 240 from it. I got 2260 and then divided that number by 2 and got the number of females. Then I took that number and added 240 to it and got the number of males.

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2 years ago

What is the answer to 4(x-2+y) for an equivalent expression?

madreJ [45]

Answer:

4x+4y-8

hope this helps

3 0

2 years ago