A researcher studies the relationship between the number of hours of sleep per night and the performance on a memory test. Study participants are randomly selected to get no sleep or
sleep in 1-hour increments, up to 8 hours total (that is, the participant gets 1 hour, 2 hours, and
so on, up to 8 hours of sleep). The researcher determines that the association between the
two variables can be modeled with the linear equation p = 9h +15, where his number of hours
of sleep and p is the percentage score on the memory test.

answer: 457.14

step-by-step explanation:

205 - 45 = 160

160 / .35 = 457.142857

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.