Suppose that a marketing manager is studying sales data for products that are not available in stores and are only sold online. She collects the following weekly sales data for 8 products not sold in stores. Assume the population standard deviation for these data is $5600. Weekly Sales Figures Product Weekly Sales ($) 1 29,738 2 17,078 3 16,914 4 23,889 5 18,474 6 24,754 7 24,699 8 23,924 Step 1 of 2 : Find the value of the chi-square statistic for these data. Round your answer to three decimal places, if necessary.

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.

question 1: step-by-step explanation:

1/4 of 84 = 84÷4= 21