There are 52 cards in a deck of cards there 13th of each kind
So it's 13/52. X 12/52
Answer:
A≈1075.21
d Diameter
37
d
r
r
r
d
d
C
A
Using the formulas
A=
π
r
2
d=
2
r
Solving forA
A=
1
4
π
d
2
=
1
4
π
37
2
≈
1075.21009
Step-by-step explanation:
I believe that you are talking about simultaneous equations? Then in that case, using the elimination method(Singapore syllabus person):
-7x+y=-2 —(1)
x-3y=7–(2)
(1)x3:
3(-7x+y)=3(-2)
-21x+3y=-6 —(3)
(2)+(3):
x-3y-21x+3y=7-6
-20x=1
x =-1/20
Substitute x=-1/20 into (2)
-1/20-3y=7
151/20=3y
y=-2.35
You could also use the graphical method and find the intersection for your x and y.
Answer: The answer is the second one or B
Step-by-step explanation:
Its actually really easy, you have to look at the bar that goes 0-3 and see if it goes up to 5. Then you go to the bar 4-7 and see if it goes to 8. You just keep on continuing and if it you do for example, 8-11 on one and it doesnt go to 10, it means its not correct