Answer:
n=-2
Step-by-step explanation:
-6n-2n=16
-8n=16
n=16/-8
n=-2
Answer:
a) 4 - 
b) 1 - 
c) 6 - 
Step-by-step explanation:
It simply asks the steps to go from the original displacement formula to isolate a (the acceleration). It's just a matter of moving items around.
We start with:

We then move the vt part on the left side, then multiply each side by -1 (to get rid of the negative on the at side and to match answer choice #4):

Then we multiply each side by 2 to get rid of the 1/2, answer #1:

Finally, we divide each side by t^2 to isolate a (answer #6):

Answer:
the answer is C: 1932 sq. cm
Step-by-step explanation:
You want to break down the sections (which is double for each)
there are 6 rectangles but you will only need to calculate for 3
1st rectangle
a = (25) (12)
a = 300 sq. cm
**then multiply by 2 = 600 sq. cm**
2nd rectangle
a = (12) (18)
a = 216 sq. cm
then 216 * 2 = 432 sq. cm
3rd rectangle
a = (25) (18)
a = 450 sq. cm
then 450 * 2 = 900 sq. cm
Total Surface Area
SA = 600 sq. cm + 432 sq. cm + 900 sq. cm
SA = 1932 sq. cm
y > -(1/2) x + 5 and y ≤ 3x - 2
(5,3):
3 >? -(1/2)(5) + 5 = 5-5/2 = 5/2; that's true
3 ≤ 3(5) - 2 = 13; that's true
(4,3)
3 >? -(1/2)4 +5 = 5 - 2 = 3; that's false
Answer: 2) (4,3)
Let's check the rest.
(3,4)
4 >? -(1/2)(3) + 5 = 5 - 3/2 = 7/2, true
4 ≤ 3(3) - 2 = 7, true
(4,4)
4 >? -(1/2)(4) + 5 = 5 - 2= 3, true
4 ≤ 3(4) - 2 = 10, true
Answer seems right.