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ziro4ka [17]
3 years ago
10

I need help with graphing​

Mathematics
1 answer:
Usimov [2.4K]3 years ago
7 0
Are you finding the x-intercept
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Graph f(x)= -16x^2 + 40
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I cannot send an attachment but the function forms a parabola. have you tried using a graphic calculator?
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If the price of gas is $9.475, what will the price be when we round it to the hundredths place?
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$9.45

Step-by-step explanation:

if you round you get that

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High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capa
Mekhanik [1.2K]

Answer:

A student have to score 1.28 standard deviations above the mean o be publicly recognized.

Step-by-step explanation:

If X \sim N (\mu, \sigma^{2}), then Z=\frac{X-\mu}{\sigma}, is a standard normal variate with mean, E (<em>Z</em>) = 0 and Var (<em>Z</em>) = 1. That is, Z \sim N (0, 1).

The distribution of these <em>z</em>-variates is known as the standard normal distribution.

In statistics, a standardized score is the number of standard deviations an observation or data point is above the mean.

Thus, <em>z</em>-scores are a type of standardized scores.

It is provided that the students who score in the top 13 percent in the National Financial Capability Challenge Exam are recognized publicly for their achievement by the Department of the Treasury.

Let <em>x</em> be score of the top 13%.

So, to be are recognized publicly for their achievement by the Department of the Treasury the probability of score <em>x</em> must be:

P (X < x) = 0.90

⇒ P (Z < z) = 0.90

The value of <em>z</em> for the above probability is:

<em>z </em>= 1.28

*Use a <em>z</em>-table.

Thus, a student have to score 1.28 standard deviations above the mean o be publicly recognized.

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3 years ago
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Which expression represents the phrase "twice the sum of a number and three"?
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2(n+3)
two times the sum of a number (n) and 3
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3 years ago
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What's the volume of 1,000 kg of steel in cubic meters?
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I don't know for sure, but I think the answer is 200

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