Answer:
It took the cell phone 4.15 seconds to reach the ground
Step-by-step explanation:
The formula is , where t is the time and h is the height
The height of that the cell phone dropped from it is 275 feet above the ground
∴ h = 275
- Substitute the value of h in the formula to find t
∵
∴
- Change it to decimal
∴ t = 4.15 seconds to the nearest 2 decimal places
It took the cell phone 4.15 seconds to reach the ground
Answer:
Part a)
Part b)
Step-by-step explanation:
Part a) Set up a proportion to show the relationship between the distance in miles and the size of the map
we know that
The scale on a map is equal to
That means
1 inch on a map represent a 15 miles in real life
Part b) How far apart are the cities in real life?
Let
x -----> the distance in real life
using proportion
Answer:
x = 6, y= -6
Step-by-step explanation:
-4x - 2y=-12
4x + 8y = -24
Add the two equations together to eliminate x
-4x - 2y=-12
4x + 8y = -24
------------------------
6y = -36
Divide each side by 6
6y/6 = -36/6
y = -6
Now we can find x
4x+8y = -24
4x +8(-6) = -24
4x -48= -24
Add 48 to each side
4x -48+48 = -24+48
4x = 24
Divide each side by 4
4x/4 = 24/4
x =6
Answer:
5.25 or 5 1/4
Step-by-step explanation:
rate of change = slope = m = rise ÷ run
21 ÷ 4 = 5.25 or 5 1/4
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2,380
23 hundred = 2,300
7 tens = 70
10 ones = 10
2,300 + 70 + 10 = 2,380