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weqwewe [10]
3 years ago
6

It's easy I'm just not I'm my head rn can someone help?

Mathematics
1 answer:
marta [7]3 years ago
8 0
B and C for sure maybe A. Def not D
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I need some help with this
natima [27]

Answer:

8

Step-by-step explanation:

8 0
3 years ago
Suppose an astronaut can jump vertically with an initial velocity of 5 m/s. The time that it takes him to touch the ground is gi
Vitek1552 [10]

Answer:

t=1.020s

Step-by-step explanation:

Given Equation:

5t-0.5at^{2} =0

Actually the given equation is the 2nd equation of motion

i.e. S =V_{i} t+0.5at^{2}

where S=0 because the astronaut jumps on the earth

and initial velocity V_{i}=5

to find time t, put the given value of a=9.8m/s^{2} in the given equation, we get

5t-0.5(9.8)t^{2} =0\\t(5-4.9t)=0\\ \ dividing\ both\ sides\ by\ t\ we \ get\\ 5-4.9t=0\\4.9t=5\\t=\frac{5}{4.9}\\ t=1.020s

it will take t=1.020s to reach the ground if he jumps on the Earth

3 0
3 years ago
Help, please!!! Coordinate planes: find the distance. Thanks for helping!
ruslelena [56]

Answer:

The answer would be 11.3

Step-by-step explanation:

All you have to do is figure out how far one is from the other so from 7.8 I went back to 0 of course the Y coordinate stays the same. So then you get the -3.5 make it a positive so just 3.5 and then add to 7.8 to get 11.3

Hope this helped.

A brainliest is always appreciated.

6 0
2 years ago
In the right triangle, a = 20, b = 21. Find c<br><br> A) 841<br> B) 22<br> C) 29
Mariulka [41]

Answer:

C

Step-by-step explanation:

3 0
2 years ago
Find the inverse of each function<br> Problem 1: Find the inverse of y = 3x - 8
marysya [2.9K]
Switch y and x to find the inverse:
x = 3y - 8
Now just solve for y
y = x/3 + 8/3
4 0
3 years ago
Read 2 more answers
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