Answer: -13
Step-by-step explanation:
just substitute the letters for the numbers.
5(-2) - 3(2) -(-3)
then, remove the parenthesis.
-10 - 6 + 3
finally, just calculate it.
-13
The answer is box b, by $0.48
Calculate the surface area of rectangular prism is A = 2 (wl + hl + wh)
w - width, l - length, h - height
The cost is $0.03 per square inch: C = .0.03 * A
Box a:
l = 8 in
w = 3 in
h = 6 in
A = 2 (wl + hl + wh) = 2(3 * 8 + 6 * 8 + 3 * 6) = 2(24 + 48 + 18) = 2 * 90 = 180 in²
C = 0.03 * A = 0.03 * 180 = $5.40
Box b:
l = 10 in
w = 3 in
h = 4 in
A = 2 (wl + hl + wh) = 2(3 * 10 + 4 * 10 + 3 * 4) = 2(30 + 40 + 12) = 2 * 82 = 164 in²
C = 0.03 * A = 0.03 * 164 = $4.92
Thus, it is less expensive to cover box b with foil by $5.40 - $4.92 = $0.48
Answer: $10,274
Step-by-step explanation:
With down payment ($216*36)+2,399+$194=10,477
No money down
($280*36)+$194=10,274
The
value is multiplied by 3 when n increases by 1. The only expression that does that is the one that has 3 as the base of the exponential term.
The appropriate selection is ...
![a_n=\dfrac{1}{3}(3)^{n-1}](https://tex.z-dn.net/?f=a_n%3D%5Cdfrac%7B1%7D%7B3%7D%283%29%5E%7Bn-1%7D)