Answer:
b
Step-by-step explanation:
b just honestly looks right and its my lucky letter so yaa...
Answer:
Step-by-step explanation:
x + 2y = 2
2x + 4y = -8
-2x - 4y = -4
2x + 4y = -8
0 not equal to -12
no solution
Answer:
The probability that their mean life will be longer than 13 years = .9943 or 99.43%
Step-by-step explanation:
Given -
Mean
= 15 years
Standard deviation
= 3.7 years
Sample size ( n ) =22
Let
be the mean life of manufacturing items
the probability that their mean life will be longer than 13 years =
=

= 
=
Using Z table
= 1 - .0057
= .9943
Answer:
AGE should be 35
Step-by-step explanation:
same as DGB
Answer:
0.25
Step-by-step explanation:
5x-3 > 15x-11/2
5x-15x > 3-11/2
-10x > -2.5
x > -2.5/-10
x > 0.25