For the safety of the audience, the fireworks should be set to explode at least 450 feet above the ground. the length of the second fuse in a mortar firework controls when the firework explodes. the fireworks company has these four fuses available: fuse a: the firework will explode in 1 to 3 seconds. fuse b: the firework will explode in 3 to 5 seconds. fuse c: the firework will explode in 6 to 8 seconds. fuse d: the firework will explode in 8 to 10 seconds. which fuse should the company use for your fireworks display, and why?

how technical is this supposed to be?

e) none of the above because the measure of angle cba is 101°

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3