Answer: LAST OPTION.
Step-by-step explanation:
1. You have the following equation:

2. Then you must solve for x, as following:

Therefore, as you can see above, the answer for the exercise is the last option.
Answer:
15 and 6
Step-by-step explanation:
Answer:
answer is 20............
Step-by-step explanation:
3x=13-19
x= -6/3
x= -2
M a t h w a y will help you my friend!
I was struggling with math and using it got me get back on track :)
.3997 + 0.5 = 89.97%
Use your z table to get the area under the curve from 50 to 59. 50 is 1.28 std deviations from the mean. Then add the other 50%