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3 years ago

Which equation in NOT an example of a liner function?

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

3 0

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Which expression is equivalent to 2(4x)? a) 2 4x b) (2×4)x c) (2 4x) × (2 4x) d) (2 × 4) (4 × 2x)

prisoha [69]

2(4x) = (2 x 4)x....

7 0

3 years ago

An English professor assigns letter grades on a test according to the following scheme. A: Top 5% of scores B: Scores below the

tangare [24]

Answer:

Grade D score:

$69 \leq x \leq 74$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 78.8

Standard Deviation, σ = 7.1

We are given that the distribution of scores on test is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

D: Scores below the top 77% and above the bottom 9%

We have to find the value of x such that the probability is 0.77

$P( X > x) = P( z > \displaystyle\frac{x - 78.8}{7.1})=0.77$

$= 1 -P( z \leq \displaystyle\frac{x - 78.8}{7.1})=0.77$

$=P( z \leq \displaystyle\frac{x - 78.8}{7.1})=0.23$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 78.8}{7.1} =-0.739\\\\x = 73.55$

We have to find the value of x such that the probability is 0.09

$P(X < 0.09) = \\\\P( X < x) = P( z < \displaystyle\frac{x - 78.8}{7.1})=0.09$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 78.8}{7.1} = -1.341\\\\x = 69.27$

Thus, the numerical value of score to achieve grade D is

$69 \leq x \leq 74$

6 0

3 years ago

PLS HELP WITH MATH HURRY

AlekseyPX

Answer:

x+3=9

Step-by-step explanation:

I hope this helped!

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3 years ago

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16/250, 6.5% and 0.062 from least to greatest

harina [27]

0.062,16/250 and 6.5%

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3 years ago

PLEASE HELP (LOTS OF POINTS) you will get reported if u put random things

Doss [256]

The point is located on the x parameter of the graph.

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3 years ago

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