You are conducting a case study on a school with the highest sat scores in the state prior to going to the school you conduct quick internet search to learn the demographics of the school which type of data collection did you use?

a. observation
b. interview
c. questionnaire
d. historical data

i need with this asap i this the answer is a but i’m not quite sure so if someone could me out and let me know if i’m right or not and if i’m wrong tell me what the answer is and why the answer that you picked is the correct one i’m just trying to understand this a little bit more so if someone could me out that would be great !

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.

the opening of this porabola is facing up

step-by-step explanation:

answer: - (a)

(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=

second term=

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

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

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

∴there are 88 seats in 12 rows.