Answer:a,cd,and h
Step-by-step explanation:
The practical domain of time is t ∈ [0, 4.25s].
- The set of values that make feel in a particular context is referred to as the sensible area.
- All feasible solutions are addressed by way of theoretical domains and stages.
- domain names and stages restrict the solution sets such that they may be realistic in the parameters given
- .The ball begins its motion at time t = 0s.
- To locate the time while the ball hits the floor,
- we solve the equation:
- h(t) = -16t² + 68t
- h(t) = 0
- -16t² + 68t = 0
- t(-16t + 68) = 0
- t = 0 and -16t + 68 = 0.
- 16t = 68
- t = 68/16
- t = 4.25
- h(t) is non-negative within the interval [0, 4.25].
- Hence, the practical domain is 0 ≤ t ≤ 4.25 s.
To learn more about domain, visit :
brainly.com/question/28135761
#SPJ4
⇒Δ=6^2+4*72= 36+288=324
V324=18
x1= ( -6+18)/2=6
x2= (-6-18)/2=-24/2=-12
⇒ x1= 6
x2= - 12
Answer:
C 117
Step-by-step explanation:
<2 = 63 vertical angles
<2 = <4 alternate interior angles
<4 + <7 = 180 straight line
63 +<7 = 180
subtract 64 from each side
<7 = 180-63
<7 = 117
