Yes it is a solution, 8-3 is less than or equal to 9
Answer:
D is the correct a
Step-by-step explanation:
From table A-3: Areas under the normal curve
we can deduce that k=0.9
Answer: (2,9)
Step-by-step explanation:
You found it out already but yeah
X+y=30
x-y=12
add them together
x+y=30
<u>x-y=12+</u>
2x+0y=42
2x=42
divide 2
x=21
subsitute
x+y=30
21+y=30
subtrat 21
y=9
number sare 21 and 9
