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grandymaker [24]

3 years ago

6

What’s the correct answer for number 3

1 answer:

STatiana [176]3 years ago

7 0

Answer:

The answer is D

Step-by-step explanation:

if there are 6 faces and only one out of the six is "2" then its you only have 1/6 probability. Hope this helps! Make sure to mark as brainliest

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Vertical angles must be:

AlexFokin [52]

Vertical angles are congruent (equal in measure) and they have the same vertex point.

3 0

2 years ago

It is POSSIBLE to toss a coin 20 times and have it land tails-up all 20 times.

levacccp [35]

Answer: Yes.

Step-by-step explanation: It is very rare, but is indeed possible.

3 0

2 years ago

-3(8+j)=-16+5j<br> HELP ASAP NEED THIS DONE TONIGHT BEFORE MIDNIGHT

iogann1982 [59]

Answer:

j = -1

Step-by-step explanation:

Eliminate parentheses:

-24 -3j = -16 +5j

Add 3j+16

-8 = 8j

Divide by the coefficient of j.

-1 = j

8 0

2 years ago

Read 2 more answers

One environmental group did a study of recycling habits in a California community. It found that 75% of the aluminum cans sold i

AysviL [449]

Answer:

a

$P( \^ p > 0.775 ) = 0.12798$

b

$P( 0.6718 < p < 0.775 ) =0.87183$

Step-by-step explanation:

From the question we are told that

The population proportion is $p = 0.75$

Considering question a

The sample size is $n = 387$

Generally the standard deviation of this sampling distribution is

$\sigma = \sqrt{ \frac{p(1 - p)}{ n } }$

=> $\sigma = \sqrt{ \frac{0.75(1 - 0.75)}{ 387 } }$

=> $\sigma = 0.022$

The sample proportion of cans that are recycled is

$\^ p = \frac{ 300}{387 }$

=> $\^ p = 0.775$

Generally the probability that 300 or more will be recycled is mathematically represented as

$P( \^ p > 0.775 ) = P( \frac{\^ p - p }{ \sigma } > \frac{0.775 - 0.75 }{ 0.022} )$

$\frac{\^ p - p }{\sigma } = Z (The \ standardized \ value\ of \ \^ p )$

$P( \^ p > 0.775 ) = P( Z > 1.136 )$

From the z table the area under the normal curve to the left corresponding to 1.591 is

$P( Z > 1.136) = 0.12798$

=> $P( \^ p > 0.775 ) = 0.12798$

Considering question b

Generally the lower limit of sample proportion of cans that are recycled is

$\^ p_1 = \frac{ 260 }{387 }$

=> $\^ p_1 = 0.6718$

Generally the upper limit of sample proportion of cans that are recycled is

$\^ p_2 = \frac{ 300}{387 }$

=> $\^ p_2 = 0.775$

Generally probability that between 260 and 300 will be recycled is mathematically represented as

$P( 0.6718 < p < 0.775 ) = P( \frac{0.6718 - 0.75 }{ 0.022}< \frac{\^ p - p }{ \sigma }$

=> $P( 0.6718 < p < 0.775 ) = P( -3.55 < Z < 1.136 )$

=> $P( 0.6718 < p < 0.775 ) = P(Z < 1.136 ) - P( Z < -3.55 )$

From the z table the area under the normal curve to the left corresponding to 1.136 and -3.55 is

$P( Z < -3.55 ) = 0.00019262$

and

$P(Z < 1.136 ) = 0.87202$

So

$P( 0.6718 < p < 0.775 ) = 0.87202- 0.00019262$

=> $P( 0.6718 < p < 0.775 ) =0.87183$

4 0

2 years ago

which answer describes the graph of the function f(x)=-2*3^√x? just incase this isn't clear the three is above the square root s

andrey2020 [161]

The function has a domain that goes from [0,∞]

And a range that goes from [-∞,0]

(See attached graph)

8 0

2 years ago