The value of nth term is calculated by the equation,
an = (a1) x r^(n - 1)
Using this equation to find for the common ratio,
-8192 = 8 x r^(6 - 1)
The value or r is -4. Using the same equation to find for the 12th term,
a12 = 8 x (-4)^(12 - 1)
a12 = -33554432
Let x be the expected number
Number arriving = 3•5 x
Unexpected number 2•5 x
2•5 x = 105
10x = 420
x = 42______Option D
Please, would you present only one problem at a time, and (hopefully) do whatever you can to solve that problem before asking for help.
Problem 5: we focus exclusively on "red notebooks," of which there are (55+60+23), or 138. Of all the red notebooks, 60 have 150 pages. So the answer to this question is 60/138, which can be reduced.
Answer:
the answer would be 20cm^2 i took a quiz.
Step-by-step explanation:
#25
210 / 0.42 = 500
answer: 500 people were surveyed
#18
22.50 x 1.15 = 25.875
answer: $25.88 (third choice)
#19
550 x 0.07 = $38.50
answer: $38.50 (third choice)
#20
$160 x 0.4 = $64
answer: $64 (third choice)