I hope this step by step explanation helps.
Keeping in mind that there are 5280 ft in 1 mile, and there are 60 minutes in 1 hr and 60 seconds in 1 minute, therefore 60*60 seconds in 1 hr, or 3600 seconds, then.
Answer:
1. y = 1/3x - 1
2. y = 2/5x
3. y = x + 8
Step-by-step explanation:
Generally, we have the equation of a straight line as;
y = mx + c
where m is the slope and c is the y-intercept
So, we have the following based on the supplied values;
1. y = 1/3x - 1
2. y = 2/5x
3. y = x + 8
For solving of the area of a square pyramid, we can use the formula below:
A=a²+2a sqrt (a²/4 +h²)
where s for the slant height, r for the a/2, where a is the side length and h for the height
Substitute the values,
A=40²+(2*40) SQRT (40²/4 +21²)
A=3920
The answer is 3920 for the area of the square pyramid.
You have to find a number you can devise by