Answer:
I just learned this topic and have the same question, so I'm not sure if this right. However, I see a fellow student struggling and have to at least put in what I know. My equation was f(n) = 64(1/2)^n-1, then the question was write an expression to represent f(20).
Step-by-step explanation:
So, my answer was f(20) = 64(1/2)^19
f(20) is the number you plug into n. And because the exponent is n-1, I knew to subtract 1 from 20 to get 19.
Then I just wrote the equation out like the original expect with the numbers pluged in: f(20) = 64(1/2)^19
I hope this helps!
3x - 8 = -2 |subtract 10 from both sides
3x - 18 = -12 |divide both sides by 3
x - 6 = -4
Answer:
D, supplementary, BC, D
Step-by-step explanation:
Answer:
1/1,000 chance of winning
Step-by-step explanation:
Answer:
The profit for January is $57,200.
Step-by-step explanation:
The total profit for the two months would be the result of adding up the profit in January plus the profit in February:
Total profits=Profit in January+Profit in February
Also, you can say that profits in January can be represented by x and you know that the profit for a company in February was 15% higher than it was in January which can be expressed as: 1.15x. Moreover, you know that the total profit for the two months was $122,980. Now, you can replace the values on the formula:
122,980=x+1.15x
Now, you can solve for x:
122,980=2.15x
x=122,980/2.15
x=57,200
According to this, the answer is that the profit for January is $57,200.
