Begin by following the herd . . . call the two numbers 'x' and 'y' .
You said that xy=1 , so y = 1/x
You said that x + y = 10, so x + 1/x = 10
Multiply each side by 'x': x² + 1 = 10x
Subtract 10x from each side: x² - 10x + 1 = 0
Use the quadratic formula to solve this, and the two solutions
that you get for 'x' are also the two numbers 'x' and 'y' .
They are
<em>9.89898</em>
and
<em>0.10102</em>
(rounded)
Answer:
The answer is below
Step-by-step explanation:
Let the budget be represented by B. Since the grouo has only $8,000, hence, the inequality can be represented as:
B ≤ $8000
Also, $3400 was spent on transportation. If other cost is represented by C, therefore, other cost is given as:
Other cost ≤ Budget - cost of transportation
C ≤ $8000 - $3400
C ≤ 4600
From above, to stay within the budget, all other costs must be below $4600
Answer:
-1
Step-by-step explanation:
-8(-1) + 2y = 8
8 + 2y = 8
2y = 0
4(-1) + 3y = -4
-4 + 3y = -4
3y = 0
It's a summation (sigma) notation.
This expression means the sum of all the terms 
, where <em>i</em> takes the values from 1 to <em>n</em>.
So <em>i</em> is the index (like a counter) and <em>n</em> is the last value.
In this case:
Answer:
Below in bold.
Step-by-step explanation:
Area of shaded part
= 5*10 - x(x + 5)
= 50 - (x^2 + 5x)
= -x^2 - 5x + 50
= -(x^2 + 5x - 50)
= -(x + 10)x - 5).
