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katrin [286]
3 years ago
10

Please help ASAP cannot get this question wrong!!

Mathematics
2 answers:
Yakvenalex [24]3 years ago
6 0

Answer:

The answer is D

Step-by-step explanation:

Ahat [919]3 years ago
5 0

Answer:

please be spacific

Step-by-step explanation:

because if you arent people might not know what you need help with.

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The letter​ "t" makes up an estimated 10​% of a certain language. Assume this is still correct. A random sample of 500 letters i
Andrew [12]

Answer:

  0.2755

Step-by-step explanation:

We intend to make use of the normal approximation to the binomial distribution.

First we'll check to see if that approximation is applicable.

For p=10% and sample size n = 500, we have ...

  pn = 0.10(500) = 50

This value is greater than 5, so the approximation is valid.

__

The mean of the distribution we'll use as a model is ...

  µ = p·n = 0.10(500)

  µ = 50

The standard deviation for our model is ...

  σ = √((1-p)µ) = √(0.9·50) = √45

  σ ≈ 6.708204

__

A continuity correction can be applied to better approximate the binomial distribution. We want p(t ≤ 9.1%) = p(t ≤ 45.5). For our lookup, we will add 0.5 to this limit, and find p(t ≤ 46).

The attached calculator shows the probability of fewer than 45.5 t's in the sample is about 0.2755.

6 0
3 years ago
What is (7s^2+3s)-(4s^2-3s+1) in simplest form?
DENIUS [597]
First distribute the negative over the parentheses:-
= 7s^2 + 3s - 4s^2 + 3s - 1
= 3s^2 +6s - 1
5 0
3 years ago
The table below represents a function. Which of the following equations could be its function rule? x y 0 0 1 -3 3 -9 -2 6 y = y
alexandr1967 [171]

Answer:

y=-3x

Step-by-step explanation:

6 0
3 years ago
Answer this please, actually only delany, have a heart she needs the points
MariettaO [177]

the answer is a B:9

Step-by-step explanation:

THE ANSWERS FOR u question is a B:9

5 0
3 years ago
Read 2 more answers
The change in the value of an account when given to the nearest dollar?
devlian [24]
What changes may occur if the given dollar will be rounded off to its nearest value.
<span>There will only be 2 chances, the dollar will become smaller or bigger. Why? </span>
Because in mathematical rules of rounding off numbers:
number below 5 will be round down and 5 and up will be rounded up.
For example:
You have a bill of $6.79  since the number next to the decimal point in the right is 7, it will be rounded up to $7.
<span>But if your bill is $6.25, it will be rounded down to $6.00 
</span>
I got this from a different brainy member
7 0
3 years ago
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