Write an equation to the nth term of the arithmetic sequence. (write the equation for the sequence)
1 answer:
Answer:
15,13,11,9,…
Given
2
13 - 15 = -2
11 - 13 = -2
9 - 11 = -2
d = -2
3
4
when n = 515,13,11,9,…
Given
2
13 - 15 = -2
11 - 13 = -2
9 - 11 = -2
d = -2
3
4
when n = 515,13,11,9,…
Given
2
13 - 15 = -2
11 - 13 = -2
9 - 11 = -2
d = -2
3
4
when n = 5
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Step-by-step explanation:
jdsjksksabbsksisisnsbsjjw
if the mean is 70 minutes, then 90 minutes is 2 standard deviations above 70. if you look at the bell curve i drew, the percent of exams that took over 90 minutes is 2.5%
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Solution:
<u>Note that:</u>
6x + 26 = 92 (Vertically opposite angle) 92 + 92 + z + z = 360 <u>Finding x.</u>
6x + 26 = 92 => 6x = 92 - 26 => 6x = 66 => x = 11 <u>Finding z.</u>
92 + 92 + z + z = 360 => 184 + 2z = 360 => 2z = 360 - 184 => 2z = 176 => z = 176/2 = 88
R S + 14(S) R=6 S=1/4 (6)(1/4) + 14(1/4) 1.5 + 14(1/4) 1.5 + 3.5 5