In a survey of 2035 adults in a certain country conducted during a period of economic uncertainty, 59% thought that wages paid to workers in industry were too low. the margin of error was 3 percentage points with 90% confidence. for parts (a) through (d) below, which represent a reasonable interpretation of the survey results? for those that are not reasonable, explain the flaw.(a) we are
95%
confident
67%
of adults in the country during the period of economic uncertainty felt wages paid to workers in industry were too low.
is the interpretation reasonable?
a. the interpretation is reasonable.
b. the interpretation is flawed. the interpretation indicates that the level of confidence is varying.
c. the interpretation is flawed. no interval has been provided about the population proportion.
d. the interpretation is flawed. the interpretation suggests that this interval sets the standard for all the other intervals, which is not true.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

the answer is 489

step-by-step explanation:

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation: