0.3(4x-8)-0.5(2.4x+4)
1.2x-2.4-1.2x+2
x-0.4
Answer:
-6
Step-by-step explanation:
7k − 5k + 8 = −4
2k+8=-4
-8 -8
2k=-12
/2 /2
k=-6
<u><em>Check!</em></u>
7(-6)-5(-6)+8
-4=-4
You're starting at 400. Each time you're cutting in half.
So the common ratio is 1/2 which means the equation is

which is in the geometric sequence format. So the answer is choice D
the answers are b c d and e
Answer:
12
Step-by-step explanation:
This value would be 2(-1)^2*2(3). I have enclosed the given values of x and y for clarity.
This works out to 2(1)*2(3) = 12.