Answer:
An equation of slope:
y = -5x+72
Step-by-step explanation:
The equation of slope intercept is given by:
where m is the slope and c is the y-intercept or initial value.
Let x represents the time in minutes and y represents the height of the water level
As per the statement:
The water level in Noah's water tank is 72 inches high.
At x = 0
y= 72
It is also given that:
The water drains at a speed up 5 inches per minute.
Here, m represent the slope in inches per minute
(as the water drains)
Substitute in [1] we get;
y = -5x+c
Substitute x = 0 then;
72 = -5(0)+c
72 = c
⇒equation becomes: y = -5x+72
Therefore, an equation of slope is y = -5x+72
This is a right triangle (you can confirm by using Pythagorean Theorem: 15² + 36² = 39²)
A =
A =
= 15 * 18
= 270
Answer: 270 cm²
Answer:
<em>is your answer.</em>
Step-by-step explanation:
Answer:
75.7m^2
Step-by-step explanation:
Answer:
Proved
Step-by-step explanation:
Given
Required
Prove
On the right hand side, we have:
Rewrite:
Apply law of indices
Express 6 as 3.5 + 2.5
Open bracket
Proved