The answer is the last one. D
In this question, the condition asked is two which was
1. The dice sum >7 (notice that >7 mean at least 8)
2. One of the two dice show a 2
It will be easier to fulfill the No.2 condition first so you can divide the probability into two,
Case 1: 1st dice show 2: then the second dice need to be 6 to made it sum>7
Case 2:2nd dice show 2: then the second dice need to be 6 to made it sum>7
The probability for a dice showing 2 is 1/6. The probability for a dice showing 6 is 1/6. Then the probability is 1/6 * 1/6= 1/36 for each case
Since case 1 and case 2 has same probability, then you just need to multiply 1/36 *2 = 1/18
Answer:
- C. 13x = 39
- E. x + 7 = 10
- F. x – 1 = 2
Step-by-step explanation:
Putting 3 into each of the equations in place of x, you get ...
A. 3·3 = 1 . . . . false
B. 3·3 = 33 . . . . false
C. 13·3 = 39 . . . . TRUE
D. 3 +4 = 9 . . . . false
E. 3 +7 = 10 . . . . TRUE
F. 3 -1 = 2 . . . . TRUE
Applicable choices are C, E, F.
Answer:
width = 12 yards
Step-by-step explanation:
width: x
length: x + 3
perimeter: 54
x + x + (x + 3) + (x + 3) = 54
4x + 6 = 54
subtract 6 from both sides
4x = 48
x = 12
width: 12
length: 12 + 3 = 15
Answer:
-3
Step-by-step explanation:
if x's value is equal to the other x's value and less than -2
