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3 years ago

11

shaun plotted a point on the number line by drawing 5 equally spaced marks between 0 and 1 and placing a point on the third mark

he claims that point represents the fraction 3/5because each mark represents 1/5 so the third mark represents 3/5

1 answer:

Ilya [14]3 years ago

8 0

Shaun is correct. His details are accurate,
and he understands the concepts.
Yay Shaun !

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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

First right answer will get brainlist

garri49 [273]

Answer is 4 .............

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3 years ago

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Ivanshal [37]

Im not rlly that good at math but I believe in u smart ppl

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3 years ago

Word form for 49.564

d1i1m1o1n [39]

Answer:

49 decimal five hunderd sixty four

Step-by-step explanation:

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3 years ago

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I am really confused about this question for math.. any help would be really appreciated:

Elina [12.6K]

$y= (\frac 1 4 )^x$

A reflection about the x axis, about y=0, is the mapping (x',y')=(x,-y) so

$y'= -y = - (\frac 1 4)^{x'}$

A dilation of 2 is the mapping (x'',y'')=(2x', 2y')

So

$x'=x''/2, y'=y''/2$

$y''/2= - (\frac 1 4)^{x''/2}$

$y'' = - 2((\frac 1 4)^{1/2})^{x''}$

$y''= - 2(\frac 1 2)^{x''}$

We can rewrite that without the primes and combine the powers of 2.

$y = - 2^{1-x}$

Let's graph these and see if we're close,

Plot y= (1/4)^x, y= - (1/4)^{x}, y = - 2^{1-x}

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3 years ago