bottles of water cost $2 each. is the relationship of the cost to the number of bottles a proportional relationship? you can use a table or a graph to see whether the relationship is proportional. all of the ratios in the table are equal to 2/1. this is the unit rate and means that it costs $2 for one bottle of water. the graph is a straight like through the origin (0,0). so this is a proportional relationship, what is the cost of 12 bottles? explain

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

What is 6/10 rounded to the nearest half

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.