Mathematics, 01.06.2020 20:01 Shiey0409

Subtract $a-4$ from $4a+16$ and simplify your answer. The variable $a$ should appear only once in your answer.

Answers

Answer from: Quest

- (2, -7)

- lines r and s and lines t and u must be parallel

Answer from: Quest

i don’t see a picture

Answer from: Quest

i believe it is b and c. (side note, i got the same computer from k-12 lol i’m in 8th grade and this is my first year, will it get

step-by-step explanation:

Answer from: Quest

answer: - (a) $a_n=16+6n$

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term= $a_1 =22$

second term= $a_2 =28$

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula : $a_n=a_1+(n-1)(d)$

$a_n=22+(n-1)6\\\rightarrow\ a_n=22+6n-6\\\rightarrow\ a_n=16+6n$

b) let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

$a_{12} = 16+6\times12\\\rightarrow\ a_{12}=16+72\\\rightarrow\ a_{12}=88\ seats$

∴there are 88 seats in 12 rows.

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:50, Yasin36

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

Answers: 2

continue

Mathematics, 21.06.2019 16:10, lilyplant4289

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Answers: 1

continue

Mathematics, 21.06.2019 16:30, aly2008

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

Answers: 2

continue

Mathematics, 21.06.2019 17:30, n987

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

Answers: 1

continue

You know the right answer?

Subtract $a-4$ from $4a+16$ and simplify your answer. The variable $a$ should appear only once in yo...