2 years ago

Can someone please help me

Mathematics

1 answer:

Lady bird [3.3K]2 years ago

6 0

Answer:

that is so hard sorry

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Find the value of x in each of the following<br> a) x/3-2 = 6<br> b) x/5+ 1 = 5

AnnyKZ [126]

X/3 -2 = 6

Add 2 to both sides:

X/3 = 8

Multiply both sides by 3:

X = 24

X/5 +1 = 5

Subtract 1 from both sides:

X/5 = 4

Multiply both sides by 5:

X = 20

6 0

2 years ago

Read 2 more answers

See attachment for questions.

goldfiish [28.3K]

The solution is attached. I hope it helps

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2 years ago

The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard de

qaws [65]

Answer: a. 0.6759 b. 0.3752 c. 0.1480

Step-by-step explanation:

Given : The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes

i.e. $\mu = 6.3$ minutes

$\sigma=2.2$ minutes

Let x be the long-distance call length.

a. The probability that a call lasts between 5 and 10 minutes will be :-

$P(5$

b. The probability that a call lasts more than 7 minutes. :

$P(X>7)=P(\dfrac{X-\mu}{\sigma}>\dfrac{7-6.3}{2.2})\\\\=P(Z>0.318)\ \ \ \ [z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Z$

c. The probability that a call lasts more than 4 minutes. :

$P(X$

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3 years ago

Helppppppppppppppppppp I’ll you brainlist if you don’t respond if you’re going to put something random I will report you !

qwelly [4]

Answer:

x = 0

y = -4

negative 4 cuz the line goes down, meaning it's negative

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2 years ago

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klemol [59]

Idk tbh man I think sumbody else will answer

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2 years ago