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3 years ago

How many total operations do you have when multiplying two 4X4 matrices?

Mathematics

2 answers:

aivan3 [116]3 years ago

6 0

I would think one operation

Zolol [24]3 years ago

5 0

Http://ncalculators.com/matrix/4x4-matrix-multiplication-calculator.htm you would have 32 multiplication and 16 addition I believe because. 2 2x2 matrices Is 8 multiplication and 4 addition

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The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year

puteri [66]

Answer:

$z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29$

Step-by-step explanation:

information given

$\bar X=10.6$ represent the sample mean

$\sigma=4.1$ represent the population standard deviation

$n=45$ sample size

$\mu_o =12$ represent the value that we want to test

$\alpha=0.05$ represent the significance level for the hypothesis test.

z would represent the statistic

$p_v$ represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:

Null hypothesis: $\mu \geq 10$

Alternative hypothesis: $\mu < 10$

The statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

Replacing the info given we got:

We can replace in formula (1) the info given like this:

$z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29$

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4 years ago

Is d y / d x the exact same as f ' ( x ) ? If yes, which is more commonly used?

Murrr4er [49]

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3 years ago

The height of a cone-shaped statue is 9 ft, and the diameter is 12 ft.

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I hope this helps you

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