Math Answers

If we have a linear equation what is the power of the variable(s) involved

True or false :3Z= Z+Z+Z when Z is the matrix

Let 0 Zero be the zero matrix. Write down the matrkx if of size 2×2

The average expenditure per student (based on average daily attendance) for a certain school year was $10,337 with a population standard deviation of $1560. A survey for the next school year of 150 randomly selected students resulted in a sample mean of $10, 798. Find the P-value? Should the null hypothesis be rejected at alpha = .05 level of significance?

Using the Z table, find the critical value for 

a) α  = .05, two-tailed test

b) α = .01, two tailed test

c) α = .10, two-tailed test

The average expenditure per student (based on average daily attendance) for a certain school year was $10,337 with a population standard deviation of $1560. A survey for the next school year of 150 randomly selected students resulted in a sample mean of $10, 798. Find the 95% confidence level? Should the null hypothesis be rejected?

Evaluate through constructing table of values

Lim In x 1-cos t/sint

t→0

If the position vector of A and B are 3

−→a − 7

−→b − 7

−→c and 5

−→a + 4

−→b + 3−→c , nd −→AB

and determine its magnitude and direction cosines.

Show that the set {1 − 𝑥, 3 − 𝑥 2 , 𝑥} spans 𝑃2

Determine the basis for the set of vectors lying on the plane 𝑊 = {(𝑥, 𝑦, 𝑧): 3𝑥 + 𝑦 − 5𝑧 = 0}