Answer:
0.889
Step-by-step explanation:
I think it is multiplied.
10 *9 = 90
which is the total number of ways you can draw 2 cards without replacement.
I think it is easier to figure out how many possibilities there are over 62 and go from there.
10*9
10*8
10*7
===========
9*8
9*7
So there are 5 combinations that are over 62. There are 5 more possibilities because you could draw them in the reverse order
9 * 10
8 * 10
7 * 10
8* 9
7 * 9
In all there are 10 ways of drawing numbers that are over 62
So what is the probability of drawing 2 cards above 62?
10/90 = 1/9 = 0.111
Therefore, there must be a probability of 1 - 0.111 for under 62 = 0.889
Answer:
(3•5•2a3b4)
Step-by-step explanation:
Step by step solution :
Step 1 :
Equation at the end of step 1 :
-15ab • (0 - (2a2 • b3))
Step 2 :
Multiplying exponential expressions :
2.1 a1 multiplied by a2 = a(1 + 2) = a3
Multiplying exponential expressions :
2.2 b1 multiplied by b3 = b(1 + 3) = b4
It's dimple solve by substitution and find x and y you can also use other values
A1=8
common ratio=r
sum of 6 terms
S=a1+a2+a3+...+a6
=a1(1+r+r^2+...+r^5)
=a1(r^6-1)/(r-1)
but we're given S=74648
=>
8(r^6-1)/(r-1)=74648
Cross multiply and solve for r (by trial and error)
r^6-1=9331(r-1)
r=6
so
a(3)=a1*r^(3-1)
=8*(6^2)
=288
Answer:
x is equal to 3 and y is equal to mines1
Step-by-step explanation:
add both together and you will get
and then it is easy to solve