Answer:
Step-by-step explanation:
The given sequence is
Assume that the pattern continues as indicated, the we need to find an explicit formula for the above sequence.
From the given sequence it is clear that all odd terms are 12 and all odd terms are 0.
Half of 12 is 6.
We know that,
So, the required formula is
Therefore,
.
Answer:
5000
Step-by-step explanation:
Let x be the number of yearbooks to print and sell.
Each costs $7 = -7x
Sells for $35 = 35x
When business breaks even it means the total cost is equal to the total revenue. Hence:
35x - 7x = 14000
<=> 28x = 14000
<=> x = 5000
So at 5000 yearbooks , they seek before their business breaks even
Answer:
y = ![\frac{c-ax}{b}](https://tex.z-dn.net/?f=%5Cfrac%7Bc-ax%7D%7Bb%7D)
Step-by-step explanation:
ax + yb = c ( subtract ax from both sides )
yb = c - ax ( isolate y by dividing both sides by b )
y = ![\frac{c-ax}{b}](https://tex.z-dn.net/?f=%5Cfrac%7Bc-ax%7D%7Bb%7D)
First notice that f(x) is negative, so entire graph will be below x-axis.
Next find domain by setting what is inside sqrt greater than 0.
You can't take sqrt of neg number.
![1-x \geq 0 \\ x \leq 1](https://tex.z-dn.net/?f=1-x%20%20%5Cgeq%200%20%20%20%5C%5C%20%20x%20%20%5Cleq%201)
Finally plot some points, start at x = 1, y=0.
Then try x = 0, y = -1.
x = -3, y = -2.
Connect the points, done.
Answer:
85 and -31
step-by-step:
x + y = 54
x - y = 116
solve for x in first equation
x = 54 - y
sub into second equation
54 - y - y = 116
54 - 2y = 116
-2y = 62
y = -31
sub in x equation
x = 54 - (-31)
x = 85