The explicit rule for an arithmetic sequence is f(n) = 7 + 4(n − 1).what are the fourth and fortieth terms?
1 answer:
F(4) = 7+4(4-1)
f(4) = 7+4(3)
f(4) = 7+12
f(4) = 19
The forth term is 19
f(40) = 7+4(40-1)
f(40) = 7+4(39)
f(40) = 7+156
f(40) = 163
The fortieth term is 163
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I’m not sure what you’re looking for but I got 11x - 1 = 11 x - 1 and the statement is true
3x - 5 1/2 is the expression
<h3>
Answer: 139.5</h3>
Work Shown:
cos(angle) = adjacent/hypotenuse
cos(55) = 80/x
x*cos(55) = 80
x = 80/cos(55)
x = 139.4757 approximately
x = 139.5
Answer:
b
Step-by-step explanation:
