<span>5 and 764 over 999
Converting a repeating decimal into a rational fraction is easy to do. So let's do it and see what we come up with to compare against the available options.
5.764764764 ...
It's obviously 5 + some fraction 0.764764764 ... so
X = 0.764764764 ...
1000 X = 764.764764764 ...
- X 0.764764764 ...
999 X = 764
X = 764/999
So the answer is 5 and 764/999
Looking over the available options, only the response
"5 and 764 over 999" matches.</span>
Answer:
Step-by-step explanation:
The position function is
and if we are looking for the time(s) that the ball is 10 feet above the surface of the moon, we sub in a 10 for s(t) and solve for t:
and
and factor that however you are currently factoring quadratics in class to get
t = .07 sec and t = 18.45 sec
There are 2 times that the ball passes 10 feet above the surface of the moon, once going up (.07 sec) and then again coming down (18.45 sec).
For part B, we are looking for the time that the ball lands on the surface of the moon. Set the height equal to 0 because the height of something ON the ground is 0:
and factor that to get
t = -.129 sec and t = 18.65 sec
Since time can NEVER be negative, we know that it takes 18.65 seconds after launch for the ball to land on the surface of the moon.
Step-by-step explanation:
ok so for number 1 you first have to group the like terms therefore you will now have:
9r-4r+8-6
and now you calculate:
9r-4r=5r
8-6=2
so that means 5r-2 is simplied version for no.1
for number you 2 you first multiply why is inside the brackets by what is in the outside:
2(x+3y)
2x+6y (simplified version)
hope this helps! no problem
Answer:
B
Step-by-step explanation:
dababy
Answer:
(4, 3)
Step-by-step explanation:
just is
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