Answer:Vertex: (1,-4)
Focus: (1,-1)
Directrix: y = -7
Step-by-step explanation:Brainliest?
Use demo App that would help you to find the answer
Answer:
Return trip travel time: 7h
Step-by-step explanation:
Let d be the distance.
Index 1 refers to initial trip, index 2 refers to the return trip.
v1=70mi/h
v2=40mi/h
t2=t1+3h, or t1=t2-3h (travel times)
d=v1×t1=v2×t2
v1×(t2-3)=v2×t2
v1 t2 -3 v1=v2 t2
v1 t2 - v2 t2=3 v1
t2(v1-v2)=3v1
t2=3v1/(v1-v2)
Or
t2=3×70/(70-40)=3×70/30=7h
Answer:
30%
for example for 100 the 30% of 100 is 30
but the 1/4 of 100 is 25
Step-by-step explanation:
MARK ME BRAINLIEST PLS I NEED IT
If there is supposed to be picture here, then it’s not showing.
