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DIA [1.3K]
3 years ago
15

Plzzzz help meeeeeeee

Mathematics
1 answer:
matrenka [14]3 years ago
7 0
This is elemntry math what is this world coming to ? number 1 and 4 should be easy just put them in order imm really confused on the other one
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Simplify the expression <br> 7x/9x
pantera1 [17]
<span>7x/9x = 7/9

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3 years ago
Fill in the missing reasons in the Two-column proof below.
Mice21 [21]
A. Given (This is part of the original problem)
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3 years ago
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juin [17]

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3 0
3 years ago
It is possible to score higher than 1600 on the combined mathematics and reading portions of the SAT, but scores 1600 and above
Citrus2011 [14]

Answer:

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Step-by-step explanation:

Let X be the score for 1 random person in SAT combining maths and reading. X has distribution approximately N(μ = 1011,σ = 216).

In order to make computations, we standarize X to obtain a random variable W with distribution approximately N(0,1)

W = \frac{X-\mu}{\sigma} = \frac{X-1011}{216} \simeq N(0,1)

The values of the cummulative distribution function of the standard Normal random variable, lets denote it \phi are tabulated, you can find those values in the attached file. Now, we are ready to compute the probability of X being bigger than 1600

P(1600< X) = P(\frac{1600-1011}{216} < \frac{X-1011}{216}) = P(2.7269 < W) = 1- \phi(2.7269)\\= 1- 0.9968 = 0.0032

Hence, the proportion of scores reported as 1600 is 0.0032.

Download pdf
5 0
4 years ago
The set of all the inputs of a function is called the
yarga [219]

Answer:

the set of all possible input values for a function is called the domain of the function, and the set of all output values for a function is called the range. ... The y variable is the dependent variable and represents the corresponding output value f (x) in the rang

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3 years ago
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