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anonymous
 one year ago
2 questions...
anonymous
 one year ago
2 questions...

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Determine if the graph is symmetric about the xaxis, the yaxis, or the origin. (5 points) r = 5 + 4 cos θ xaxis only yaxis only No symmetry Origin only

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Find an explicit rule for the nth term of the sequence. (5 points) 7, 7, 7, 7, ... an = 7 (1)n  1 an = 7 (1)n an = 7 1n  1 an = 7 1n + 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Given that the graph of cosine function is like the picture below: dw:1435057103375:dw. The 4 that multiplies the cos, means that every value of y is going to increase by a factor of 4. At the end, the shape remains and it is just that the graph is more stretched vertically. The 5 that adds the function, means that every coordinate has to increase by 5 at the ycoordinate. In this scenario, the graph will basically move upwards in the yaxis, but still maintaining the same shape. Ultimately, the graph still has a symmetry in the yaxis. Therefore, answer is A.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0for the second question try plugging in values for n = 1,2 and 3 into the options to which one fits

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0for example when n = 1 a1 = 7 * (1)^11 = 7* (1)^0 = 7*1 = 7

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0so n =1 fits the first option now try n = 2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0when n = 2 a2 = 7 * (1)^(21) = ? can you work that out?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0(1)^(21) = (1)^1 = ?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0you replace the n by 2 an = 7 (1)^(n1) so a2 = 7 (1)^(21)

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0a2 = 7 * (1)^1 = 7* (1) = 7 this is the same value as in the series so it looks like we have the correct option to confirm this work out the third term a3 which should come to 7 a3 = 7 * (1)^(31) can you do that?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0first work out the 3 1

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0a3 = 7 * (1)^2 can you continue?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0you need to work out (1)^2 next

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0(1)^2 = 1 * 1 = ?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0right so finally a3 = 7*1 = ?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0yes so the first 3 terms are 7,7,7 so we've found the correct option ( a4 = 7 ) correct option is A

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much... I love you

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol chappy you forgot to close the question /_^
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