Answer: D.) 3
Step-by-step explanation:
Given: Mean diameter:
Standard deviation:
The required number of standard deviations is given by :-
Hence, a beach ball with a diameter of 31.9 cm is 3 standard deviations differ from the mean.
Answer:
2y-1
Step-by-step explanation:
1/2(4y-2)=2y-1
<u>answer</u>:
2x²+2x-12
<u>explanation:</u>
(x + 3) (2x – 4) [ open the bracket ]
x(2x) -4(x) +3(2x)+ 3(-4) [ multiplication ]
2x²-4x+6x-12 [ simplify ]
2x²+2x-12 [ final answer ]
Okay think of it this way you have 45 friends but 4 unfriend you u will have 41 friends left or put it this way 45-4=41