Can you put the number lines
Answer:
None of the given system of linear inequalities
Step-by-step explanation:
Given
Required
The line inequalities with the above solution
The first set of linear inequalities, we have:
implies that the values of y is -4,-5.....
While implies that y = -2
Hence, the first set is wrong
The second set of linear inequalities, we have:
implies that the values of y is -1,0.....
While implies that y = -2
Hence, the second set is wrong
Given
d(t)=-16t^2-4t+382
1. times at which rock is 310 from ground
solve d(t)=310=-16t^2-4t+382
=>
16t^2+4t-72=0
t=(-4+/-sqrt(4^2+4*16*72)/(2*16)
=> t=-9/4 or t=2
Reject negative root from context, so
time=2 seconds.
2.
maximum is when d'(t)=0, or
-32t-4=0 => t=-1/8
Therefore rock was descending since t=0 (can also see from -4t, i.e. initial velocity is -4 ft/s)
Rock reaches ground when d(t)=0, i.e.
-16t^2-4t+382=0
t=-5.01 or t=4.763 seconds. reject negative root.
Therefore, domain, t=0 to 4.763 seconds
range = 0 to 382 ft
So assuming scaled down it is
1:1.5 or
2:3
so
72 is the 3 units
divide 72 by 3
72/3=14
14 times 2=28
the surface area=28 in^2