Answer:
.065
Step-by-step explanation:
The total number of marbles is
4 blue marbles+ 6 red marbles+ 3 yellow marbles+5 black marbles=18
P(1st black) = Black/total = 5/18
You keep the marble
The total number of marbles is
4 blue marbles+ 6 red marbles+ 3 yellow marbles+4 black marbles=17
P(2st black) = Black/total = 4/17
Multiply the probabilities together
P(black,black)= 5/18 * 4/17 =10/153=.065359477 =.065
Answer:
x
−
a
)
2
+
(
y
−
b
)
2
=
r
2
Step-by-step explanation:
I would have to say (B) ! Good Luck :D
A straight angle is 180 degrees in a right angle is 90 degrees
2 / 3 ( y + 57 ) = 178
2( y + 57 ) / 3 = 178
2*y + 2 * 57 / 3 = 178
2y + 114 / 3 = 178
3*(2 y + 114 ) / 3 * ( 178)
2 y + 114 = 534
2y = 534 - 114
2 y = 420
y = 420 / 2
y = 210
hope this helps!
