A recent survey of 1030 U. S. adults selected at random showed that 689 consider the occupation of firefighter to have very great prestige. Estimate the probability (to the nearest hundredth) that a U. S. adult selected at random thinks the occupation of firefighter has very great prestige.

66.89% probability (to the nearest hundredth) that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

The number of adults who think that firefighters have very high prestige. So

Total outcomes:

The total number of adults surveyed, so

Probability:

66.89% probability (to the nearest hundredth) that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige.

a rotation about point l

step-by-step explanation:

quizlet

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.