96 points here, having to ask same question again - a brother out. verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation. show your work. 1. cot x sec^4 x = cot x + 2 tan x + tan^3 x 2. (sin x)(tan x cos x - cot x cos x) = 1 - 2 cos^2 x 3. 1 + sec^2 x sin^2 x = sec^2 x 4. ((sin x)/(1-cos x)) + ((sin x)/(1+cos x))=2csc x 5. - tan^2 x + sec^2x = 1

two data sets with the same median will not have the same varaibility

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!