The angles shown are complementary angles the measure is <1 is (17x-16) and the measure of <2 is (4x+1) find the value of x than find the measures of <1 and <2 the figure is not drawn to scale

x = 5

<1 = 69

<2 = 21

Step-by-step explanation:

<1 + <2 = 90

17x - 16 + 4x + 1 = 90

17x + 4x - 16 + 1 = 90

21x - 15 = 90

     +15     +15

21x = 105

21       21

x = 5

<1 = 17x - 16

<1 = 17(5) - 16

<1 = 69

<2 = 4x + 1

<2 = 4(5) + 1

<2 = 20 + 1

<2 = 21

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18