<span>C. 2x^2- 16x +30 <--- answer </span>
<h2>
Answer:</h2>
The number of trees which are less than 20 meters are:
9
<h2>
Step-by-step explanation:</h2>
Based on the histogram we are asked to find the number of trees which are less than 20 meters in height.
Class interval Frequency
4-8 1
8-12 2
12-16 2
16-20 4
20-24 6
24-28 4
28-32 2
i.e. we are asked to find the total number of tress that lie in the class interval 4-20.
i.e. we add the frequencies that lie in the interval 4-20
i.e. Number of trees= 1+2+2+4=9 trees.
The area of a circle A equals either:
πr² or πd²/4
96 = πd²/4 => d = 11 inches
The diameter of the second circle equals :
11*1.5 = 16.5 inches
The area equals: π(16.5)²/4 = 214 square inches
Good luck
Answer:
$12
Step-by-step explanation:
60.00 meal
x 20percent tip
you convert the 20 percent to .20
so 60
x .20
------------
12.00
Answer:
A. Valid
Step-by-step explanation:
The P-value is the probability of getting this result or sample statistic if the null hypothesis is true. That is why a low P-value (smaller than the significance level) is considered evidence to reject the null hypothesis, because the result has little probability of being due to chance.
The statement that the P-value is "the probability of getting results as extreme as or more extreme than the ones in this study if the drug is actually not effective" is valid, as the null hypothesis states generally the opposite of the objective of the study (demonstrate that the drug is effective), and the very low value of the P-value is indicative that this result, if the drug was not effective, has a very low probability.
