A researcher is gathering data. He wants to mark off 23 evenly-spaced intervals from 2 days to 9 days during which he can sample data. Which of the following numbers marks the right end of the 14th subinterval?

a) 71/11
b) 137/23
c) 144/23
d) 151/23

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5

Which of the following vectors are orthogonal to (2,1)? check all that apply

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.