Iwill mark you brainliest if it is correct. and explain it 20 points.

the table below shows the number of marbles of different colors in a bag:

color of marbles | number of marbles
red | 1
white | 5
black | 10

ursula draws a marble from the bag randomly without looking. she then draws another marble from the bag without replacing the first one. which expression shows the probability of drawing black marbles in both the trials?

a. [ 10 over 16] + [ 9 over 16]
b. ( 10 over 16) + ( 9 over 15)
c. ( 10 over 16) * ( 9 over 16)
d. ( 10 over 16) * ( 9 over 15)

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

eve and marks ratios are equivalent

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b