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Lostsunrise [7]
4 years ago
5

How do you solve quadratics

Mathematics
2 answers:
Naddik [55]4 years ago
8 0
The quadratic formula is what you need
zzz [600]4 years ago
7 0
You use the quadratic formula


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I believe the answer is 8
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Which of the following expressions is equivalent to 4^-3?<br><br> ​
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x(12y+4)

Step-by-step explanation:

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Expand in logarithmic expression
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Round 409514.963259 to the nearest tenth.
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Step-by-step explanation:

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Suppose ACT Reading scores are normally distributed with a mean of 21.4 and a standard deviation of 5.9. A university plans to a
Yakvenalex [24]

Answer:

29.2

Step-by-step explanation:

Mean = 21.4

Standard deviation = 5.9%

The minimum score required for the scholarship which is the scores of the top 9% is calculated using the Z - Score Formula.

The Z- score formula is given as:

z = x - μ /σ

Z score ( z) is determined by checking the z score percentile of the normal distribution

In the question we are told that it is the students who scores are in the top 9%

The top 9% is determined by finding the z score of the 91st percentile on the normal distribution

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Using the formula

z = x - μ /σ

Where

z = z score of the 91st percentile = 1.341

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σ = Standard deviation = 5.9

1.341= x - 21.4 / 5.9

Cross multiply

1.341 × 5.9 = x - 21.4

7.7526 = x -21.4

x = 7.7526 + 21.4

x = 29.1526

The 91st percentile is at the score of 29.1526.

We were asked in the question to round up to the nearest tenth.

Approximately, = 29.2

The minimum score required for the scholarship to the nearest tenth is 29.2 .

6 0
4 years ago
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