1st Example: first term 5, and ratio r = 2
5 , 10 , 20 , 40 , 80, ...
2nd Example: first term 5, and ratio r = - 2
5 , - 10 , +20 , -40, +80, ....
Answer:
Choice D is correct;
r = -0.953
Step-by-step explanation:
r-value refers to the correlation coefficient between two sets of data and is use to assess the degree of association between two variables.
The value can be calculate manually or by use of software. In this case I employed the correlation function in Ms. Excel an the output is shown in the attachment below.
The function to use is; = correl
Answer:
There are multiple possibilities. One is there are 12 boys, and 16 girls. 12+16= 28 which is between 20 and 30. That would be 12:16, which can be simplified to 3:4. There is also 9 boys, and 12 girls. that would be 9:12, which can be simplified to 3:4. Also, 9 + 12 = 21, which is between 20 and 30.
Answer:
10, 20, 6
Step-by-step explanation:
10 times 2 is 20 which is greater than 10, 20 times 2 is 40 which is greater than 10, and 6 times 2 is 12 which is also greater than ten.
Answer:
0.1
Step-by-step explanation:
2x*4 = 0.8
x = 0.1
Perimeter is the sum of all sides, thus 4 * 2x.
