3. a concert choir is arranged, per row, according to an arithmetic sequence. there are 14 singers
in the third row and 30 singers in the seventh row.
(a) find the common difference of this arithmetic sequence

there are 10 rows in the choir and 6 singers in the first row
(b) find the total number of singers in the choir.

3= 26 more singers are on the seventh row

total amount of singers including the first question would be 60

Step-by-step explanation:

so im in the 6th grade but im pretty sure this might be wrong idk

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

~