<h2><em>I believe 10.91ft but I'm not sure.</em></h2>
Answer:
Since h(max) is less than 30 ft, it will never reach a height of 30ft
The maximum height it can reach is 11.25ft.
Step-by-step explanation:
Given;
The height equation of the rock;
h = -16t^2 +20t +5
To determine whether it would reach 30 ft, we need to find its maximum height. Which is at;
dh/dt = 0
dh/dt = -32t +20 = 0
At Maximum height.
t = 20/32
We then substitute into the height equation.
h(max) = -16(20/32)^2 + 20(20/32) +5
h(max) = 11.25 ft
Since h(max) is less than 30 ft, it will never reach a height of 30ft
The maximum height it can reach is 11.25ft.
Hey there!
The formula is: y2 - y1 / x2 - x1
y2 = 11
y1 = 5
x2 = 4
x1 = 1
Equation: 11 - 5 / 4 - 1
11 / 5 = 6
6 / 4 - 1
4 - 1 = 3
6/3 = 2
Answer: 2 ☑️
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Answer:
(-3, 4, 6)
Step-by-step explanation:
-3x-4y+z=-1 equation 1
2x+y-z=-8 equation 2
x+8y-z=23 equation 2
Add equation 1 and 2
-3x-4y+z=-1
2x+y-z=-8
-----------------------
-x -3y = -9 equation 4
Add equation 1 and 3
-3x-4y+z=-1
x+8y-z=23
--------------------
-2x + 4y = 22 equation 5
multiply equation 4 by -2
2x + 6y = 18
Now add it with equation 5
2x + 6y = 18
-2x + 4y = 22
-----------------------
10y = 40
divide by 10 on both sides
y = 4
Plug in y = 4 in equation 4
-x -3y = -9
-x - 3(4) = -9
-x -12 = -9
add 12 on both sides
-x = 3
x=-3
plug in x=-3 and y =4 in any one of the original equation
-3x-4y+z=-1 equation 1
-3(-3) -4(4) +z= -1
9 -16 +z=-1
-7 + z= -1
add 7 on both sides
z = 6
Answer:
3/4
Explanation:
13.45-12.7=0.75.
0.75 is 3 quarters; it can be written as '3/4'.