Answer:
B = 781.347
Step-by-step explanation:
Since we already have an equation just plug in terms where needed.

First, start by multiplying to get rid of the parentheses.

Now get rid of the power.
B = 781.347
Hope this helps with the problem.
Answer:
the line of symmetry. It's like a mirror.
Step-by-step explanation:
Answer:343 m
Step-by-step explanation:
Given
launch velocity of object is 
height of Platform 
height of object is given by

For maximum height velocity of object is zero
i.e. 


Therefore after 1 sec object achieves maximum height


Answer:
81:324
Step-by-step explanation:
3+12=15
405 div 15 =27
3 times 27 = 81
12 times 27 = 324
81:324
y=-2x+8
y=x-1
Solve y=-2x+8 for y
Substitute -2x+8 for y in y =x-1
y=x-1
-2x+8=x-1
Add -x to both sides
-2x+8+-x=x-1+-x
-3x+8=1
Add -8 to both sides
-3x+8+-8=1+-8
-3x=-9
Divide both sides by -3
-3x/-3=-9/-3
x=3
Substitute 3 for x in y =-2x+8
y=-2x+8
y=(-2)(3)+8
Simplify both sides of the equation
y=2
Answer : y=2 and x=3
(3,2)
I hope that's help !