The first term is -43.
Explanation:
an = a + (n - 1)d
a12 = a + 11d = 56, first equation
a21 = a + 20d = 101, second equation
Subtract the second equation from the first equation, cancelling +a and -a
11d - 20d = 56 - 101
-9d = -45
d = 5
Subtitute d into the first equation
a + 99 = 56
a = -43
a refers to the first term, hence the first term is -43.
Answer:
15 installments
Step-by-step explanation:
3900 = Σ 400 - 20*(n - 1)
Answer: 1.) √121= 11
Step-by-step explanation:
11•11=121
Answer: please find the attached file for the graph.
Step-by-step explanation:
Number of minutes 1 2 3 4 5 6 7 8 9 10Number of trainees 2 3 5 10 15 30 25 15 10 5
Given that data set above, the time in minutes will be on the x axis while the number of trainees will be in the y axis.
In bar chart, the bars will not touch each other.
Please find the attached file for the solution and figure
Answer:
x = 43
Step-by-step explanation:
x + 28 + 195 = 180
x + 223 = 180
x = 180 - 223
x = 43 (ANS)
I hope my answer is correct. If not I apologize.