Ageneticist conducts a study to investigate the prevalence of a certain genetic marker in a particular population of the united states (us) adult. during the study the geneticist observed the genetic code of 1,000 randomly selected us adults in the population and finds that 350 of those adults have the genetic marker. according to the results of the study, what is the ratio of observed adults with the genetic marker to observed adults without the genetic marker? a. 7: 13 b. 13: 7 c. 7: 20 d. 13: 20

the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3