In a history class, a professor gave 5 A's, 7 B's, 22 C's, 11 D's, and 2 F's. If a single student's paper is chosen at random from this class, what is the probability that it received a D?

asdsaddsa

step-by-step explanation:

it’s the first one your welcome

m=-16

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)