Possibilities of outcomes:
5, 5, 5
5, 5, 4
P(sum at least 14) = P(5,5,4) + P(5,5,5)
= 1/4 x 1/4 x 3/20 + 1/4 x 1/4 x 1/4
1/40
(one way is to subsitute since both equal 9 you do 3x-4y=-3x+2y then add 3x to both sides 6x-4y=2y add 4y to both sides 6x=6y divide by 6 x=y now subsitute 3x-4x=9 -x=9 multiply -1 x=9 x=y y=-9)
use elimination
add them together to cancel x terms
3x-4y=9
<u>-3x+2y=9 +
</u>0x-2y=18
-2y=18
divide by 2
-y=9
multiply -1
y=-9
subsituete
3x-4y=9
3x-(4 times -9)=9
3x-(-36)=9
3x+36=9
subtract 36 from both sides
3x=-27
divide both sides by 3
x=-9
x=-9
y=-9
the answer is in (x,y) form
(-9,-9)
the answer is none of them (D is closest)
<u />
Answer:
1. 29
2. 30
3. 4,
4. 14
5. 24
6. 56
7. 11
8. 28
Step-by-step explanation:
Yes they are and its a scam and that picture is the best picture ever. There should be a documentary about this question and it should win the Oscar.
I think is (B) i think so