do the data in the table represent a direct variation or an inverse variation? write an equation to model the data in the table.
x= 1 3 4 7
y= 5 15 20 35

a. direct variation y=1/5x
b. inverse variation xy=5
c. direct variation y=5x
d. inverse variation xy=1/5

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

The null and alternate hypotheses are: h0: μ1 ≤ μ2 h1: μ1 > μ2 a random sample of 22 items from the first population showed a mean of 113 and a standard deviation of 12. a sample of 16 items for the second population showed a mean of 99 and a standard deviation of 6. use the 0.01 significant level. find the degrees of freedom for unequal variance test. (round down your answer to the nearest whole number.) state the decision rule for 0.010 significance level. (round your answer to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? use the 0.01 significance level.