Answer: C. 
Step-by-step explanation:
Given: Box contains 8 green balls and 4 purple balls.
Total balls = 8+4 = 12
event 1 = first picking green ball
event 2 = second picking purple balls.
As first ball was replaced, that means both events are independent.
Probability that you have selected a green ball and then a purple ball = P(purple ball )
Formula for probability = 
Probability of selecting a purple ball (second pick)= 
The required probability , so C is correct option.
5 x 5 x 5 = 125
since the perimeter is 20, and there are four sides, each side would be 5 since it is a square. then you do l x w x h and get 125
Apply the product rule to
7
11
7
11
.
(
2
7
)
2
⋅
7
2
11
2
(
2
7
)
2
⋅
7
2
11
2
Raise
7
7
to the power of
2
2
.
(
2
7
)
2
⋅
49
11
2
(
2
7
)
2
⋅
49
11
2
Raise
11
11
to the power of
2
2
.
(
2
7
)
2
⋅
49
121
(
2
7
)
2
⋅
49
121
Multiply
2
(
49
121
)
2
(
49
121
)
.
Tap for more steps...
(
2
7
)
98
121
(
2
7
)
98
121
Apply the product rule to
2
7
2
7
.
2
98
121
7
98
121
2
98
121
7
98
121
The result can be shown in multiple forms.
Exact Form:
2
98
121
7
98
121
2
98
121
7
98
121
Decimal Form:
0.36253492
…
0.36253492
…
(
2
7
)
2
⋅
(
7
1
1
)
2
(
2
7
)
2
⋅
(
7
1
1
)
2
We will have to divide 375 divided by 90 and that should give you the answer
or you can multiple the two numbers together to your answer
Answer:
The angle F = 47.25°
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that f =42inches and e = 39 inches
Given that ∠E = 43°
By using sine rule
⇒ 
Cross multiplication , we get
⇒ 39 sin F = 42 × sin 43°
⇒ sin F = 0.734459
<u><em>Step(ii):-</em></u>
⇒ sin⁻¹ (sin F)= sin ⁻¹ ( 0.734459)
⇒ F = 47.25
The angle F = 47.25°
