Answer:
The linear equation for Shana's elevation is 
.
Step-by-step explanation:
According to the statement, we find that Shana is climbing at constant rate in time and height as a function of time can be represented by linear function:
(Eq. 1)
Where:
- Initial height above sea level, measured in feet.
- Elevation above sea level, measured in feet.
- Climbing rate, measured in feet per minute.
- Time, measured in minutes.
If we know that 
, 
and 
. the initial height above sea level is:
The linear equation for Shana's elevation is .
Answer:
(3, 2), (2, 3)
Step-by-step explanation:
x + y = 5
xy = 6
Solve the first equation for x.
x = 5 - y
Substitute 5 - y for x in the second equation.
xy = 6
(5 - y)y = 6
5y - y² = 6
y² - 5y + 6 = 0
Factor.
(y - 2)(y - 3) = 0
y - 2 = 0 or y - 3 = 0
y = 2 or y = 3
Now substitute 2 for y in the first equation and solve for x.
x + y = 5
x + 2 = 5
x = 3
One solution is x = 3; y = 2, or (3, 2).
Now substitute 3 for y in the first equation and solve for x.
x + y = 5
x + 3 = 5
x = 2
Another solution is x = 2; y = 3, or (3, 2).
Answer: (3, 2), (2, 3)
Example answers:
1) -8x + 66
2) -2(5x+10) -2(-3x+8)
Answer:
Number 3
Step-by-step explanation:
Answer:
3√2
Step-by-step explanation:
this is called 45° ~ 45°~ 90° special triangle
the right angles has a length of x while hypotenuse has x√2
since in this triangle the given right sides' length = 3, hypotenuse must be = 3√2
