Can someone please help me with these three questions and explain

Step-by-step explanation:

Question 8)

2,8,14

d=a2-a1

d=8-2=6

a77= 2+ (76)*6

a77= 2+456=458

a77= 458

Question 9)

-12,-17,-22

d= -17+12= -5

a82= -12+ (81)*(-5)= -12-405= 417

a82= 417

Question 10)

9,13,17

d= 13-9= 4

a49= 9+ (48)*4= 201

a49= 201

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )