9514 1404 393
Answer:
Step-by-step explanation:
First of all, subtract 12 from both sides of the equation to put it into standard form:
3x² +8x -12 = 0
Then identify the a, b, c of this form:
ax² +bx +c = 0
You see that a=3, b=8, c=-12.
Now use those values in the quadratic formula for the solutions:
3) 16
8 is 16% of 50
Question incomplete
Answered by Gauthmath must click thanks and mark brainliest
Value of the test statistic,
Null hypothesis,
Alternative hypothesis,
Sample mean,
Sample size, n = 110
Standard deviation,
Significance level,
The value of the test statistics is given by the formula:
I believe the answer is the second one