A(n) = a(n-1)+9 means that we add 9 to the previous term to get the next term. Therefore the common difference is d = 9 this sequence is arithmetic.
The first term is a(1) = 21
Plug those two values into the arithmetic formula below and simplify
a(n) = a(1) + d * [ n - 1 ]
a(n) = 21 + 9 * [ n - 1 ]
a(n) = 21 + 9*n + 9*(-1)
a(n) = 21 + 9n - 9
a(n) = 9n+12
Answer is choice D
Answer:
He prolly only got like 300 some left
Step-by-step explanation:
<em>Answer:</em>
<em>It is C</em>
<em>Step-by-step explanation: The explanation says that he subtracted 10 by 20 and divided by 5 so the real answer is 18 but the answer in your page is C </em>
<em>Your Welcome :)</em>
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3x + 2y = 19
2x + 4y = 24
this would be ur system of equations
Answer:
2 cubic feet
Step-by-step explanation:
Convert all the lengths to feet round them to tenths then multiply them.
The answer you have got should be also correct as you have multiplied all the lengths then converted to cubic feet. Since your instructor has said that this is wrong this seems to be the only option remaining.
1 feet = 12 inches
