lrich20200
04.02.2021 •
Mathematics
100 points. I need the answers PLEASE! (this is part of my test, and I have no idea what I am doing.) Will mark brainiest if you answer, this is one of my few questions.
Bryan and Marc are two of my Ironman buddies and they have just had their fill at a local Subway and decide to do some Physics. Bryan has a mass of 85.0 kg with a pair of roller blades on. Marc pulls Ryan 5.00 m with a constant force and it takes him 7.66 s to accelerate Bryan from rest.
Calculate Average speed:
What was his initial speed (rest)? Vi
Calculate his final speed Vf. V=Vf+Vi
Calculate his acceleration.
Calculate the effective force Marc had on Bryan. F=ma
Solved
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Ответ:
Krista bought 35 feet of ribbon at the store. The ribbon cost $2 per linear
foot. The sales tax was 8%. If Krista paid with a $100.00 bill, how much
change should she have received? *
Step-by-step explanation:
·жStep-by-step explanation:
Ответ:
vertex is (-2,-98)
zeros are (5,0) (-9,0)
y-intercept is (0,-90)
Step-by-step explanation:
we are given
Vertex:
we can use vertex formula
we can compare and find a,b and c
a=2 , b=8 and c=-90
so, we can plug it in formula
now, we can find y-value
so, vertex is (-2,-98)
zeros:
we can set y=0
and then we can solve for x
we can factor it
zeros are
(5,0) (-9,0)
y-intercept:
we can plug x=0 and find y
So, y-intercept is (0,-90)