I know that the diameter is double of the radius, so I can divide 6 by 2 to get 3. 3.14(3)^2 gives me 28.26.
Answer:
x = -4
Step-by-step explanation:
Isolate the x by substracting 2.3x from both sides, then subtract 21.6 from both sides.
After that, you will have 1.15x = -4.6. Divide both sides by 1.15 to get x = -4.
Answer:
Two tailed test
+/-1.96
Step-by-step explanation:
Following this claim, the president would have to perform a two tailed test. Since he wants to know if the Act scores of students in her school are significantly different from what is reported by the ACT corporation.
At a confidence level that is 95%, the level of significance is = 0.05. then the z critical value to be used would be +/- 1.96