Question

.What are the explicit equation and domain for an arithmetic sequence with a first term of 6 and a second term of 2?

an = 6 − 2(n − 1); all integers where n ≥ 1

an = 6 − 2(n − 1); all integers where n ≥ 0

an = 6 − 4(n − 1); all integers where n ≥ 0

an = 6 − 4(n − 1); all integers where n ≥ 1

Answer 1

@minoz

Answer 2

to calculate nth term, we use a+(n-1)d
d=secon term- first term
u can verify whether n>=0 or 1 by substituting n=0 or 1 and check for first term 6

Answer 3

Hmm still not 100% with the answer cause these last couple questions on my HW im cluless on

Answer 4

Needed to be done at midnight that's why im trying to rush and get the answers

Answer 5

ans is D

Answer 6

Thank you a lot!!! Could you help me out with 2 more?

Answer 7

substitute n=1 in all the equations and check for ans 6
and substitute n=2 and check for ans 2
this is the easy way of verification

Answer 8

sure

Answer 9

.Given the exponential equation 2x = 128, what is the logarithmic form of the equation in base 10?

x = log base 2 of 2, all over log base 2of 128

x = log base 2 of 128, all over log base 2 of 2

x = log base 10 of 2, all over log base 10 of 128

x = log base 10 of 128, all over log base 10 of 2

Answer 10

is question 2^x or 2x

Answer 11

2x

Answer 12

C

Answer 13

not 100% sure

Answer 14

not a problem. Here is the last one

Answer 15

.What are the explicit equation and domain for a geometric sequence with a first term of 5 and a second term of −10?

an = 5(−2)n − 1; all integers where n ≥ 1

an = 5(−2)n − 1; all integers where n ≥ 0

an = 5(−15)n − 1; all integers where n ≥ 1

an = 5(−15)n − 1; all integers where n ≥ 0

Answer 16

for geometric
an=a*r^n-1
here r=second term/first term
n>=1

Answer 17

is it A or C because both are n>=1

Answer 18

r=-2 so ...

Answer 19

ooo im sorry its A lol

Answer 20

Thank you again! I really appreciate it

Answer 21

welcome :)