Answer:
A
Step-by-step explanation:
multiply 9 by 12 to get the surface area of the end of the rectangle.
you should get 108.
multiply 12 by 9 to get the surface area of the side.
you should get 135.
multiply 12 by 15 to get the surface area of the bottom.
you should get 180.
then add all your answers and multiply by 2 this will give you the total surface area and you will find that the answer is A.
A 1 = - 32, a 9 = - 120
a 9 = a 1 + 8 d
- 120 = - 32 + 8 d
8 d = - 88
d = - 88 : 8
d = - 11
a 32 = a 1 + 31 d = - 32 + 31 * ( -11 ) = - 32 - 341 = - 373
Answer: B ) - 373
They are not the same because one they dont get the same answer and one of the signs are different so it has changed the answer
Answer:
linear model
Step-by-step explanation:
This is a linear function. The initial value is 20 ft, and the yearly growth is 2ft/yr. Thus, the function is
height(t) = (20 ft) + (2 ft/yr)t, where t is the number of years.
