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Korolek [52]
2 years ago
15

What is mean by linear equations​

Mathematics
2 answers:
makvit [3.9K]2 years ago
5 0

I'm assuming you're asking for the definition of such equations.

A linear equation is an equation that can be plotted on a graph, and the line will show you all possible values of the equation.

Taya2010 [7]2 years ago
4 0

Answer:

Linear equations are basically equations for just a straight line.

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What is the y-intercept of y = -4/3x + 4?
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in slope intercept form write the equation of a line that is parallel to 3x - 5y = 7 and passes through (0, -6)​
lisov135 [29]

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The gradient is 3/7 make y the subject. Then put the coordinates in the equation.

Step-by-step explanation:

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3 years ago
When is the substitution method a better method than graphing for solving a system of
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3 years ago
Assume that the population of human body temperatures has a mean of 98.6 degrees F and a standard deviation of 0.62 degrees F. I
dimulka [17.4K]

Answer:

0% probability of getting a mean temperature of 98.2 degrees F or lower.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 98.6, \sigma = 0.62, n = 106, s = \frac{0.62}{\sqrt{106}} = 0.06

Find the probability of getting a mean temperature of 98.2 degrees F or lower.

This is the pvalue of Z when X = 98.2. So

Z = \frac{X - \mu}{s}

Z = \frac{98.2 - 98.6}{0.06}

Z = -6.67

Z = -6.67 has a pvalue of 0.

So there is a 0% probability of getting a mean temperature of 98.2 degrees F or lower.

8 0
2 years ago
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