Answer:
7
Step-by-step explanation:
Remove parentheses.
Add −8 and 4.5.
Subtract 8.25 from 6.25.
Multiply 4 by −3.5.
Divide −14 by −2.
= 7
Answer:
Step By Step Explanation:
Area Of Triangle: 
Base: 10
Height: 24 (This triangle has a right angle, so we use the height based off of the 90° angle, which is 24)
Insert Numbers Into Equation
10 = 5
➤ 
Answer:
20 = AC
Step-by-step explanation:
AB+BC = AC
11+9 = AC
20 = AC
It woulds be x+15 because if you take 2x and subtracted from the 3x then you get x and then you add the 9 and 6 witch you get 15
Answer:
Step-by-step explanation:
To solve this problem you need the function
h(t) = -16t2 + v0t + h0
where t = time
v0 is the initial velocity, which in our case is 0
h0 = initial height, which in our case is 256
h(t) = 0 since we want to know when the ball will hit the ground.
0 = -16 t2 + 256
And we can solve for t
If we rearrange the terms we see that this is a difference of 2 squares
0 = 256 - 16t2
0 = (16-4t)(16+4t)
Setting each factor = 0
16-4t=0 16+4t=4
t = 4 t = -4
The second solution is discarded as time cannot be negative.
So the ball will hit the ground in 4 seconds.
