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WARRIOR [948]
3 years ago
7

Please refer to the picture!!

Mathematics
1 answer:
faltersainse [42]3 years ago
8 0

1. rational

2. rational

3. irrational

4. rational

hope this helps :))

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A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
Blababa [14]

Answer:

Step-by-step explanation:

so when the height is zero, that's when the rocket hits the ground.  The equation will have two zeros,  but one would be for a negative time,  or before the rocket is launched.    so we only one the one after the rocket is launched.

use the quadratic formula to solve for  x  ( which is time)

-124 +- sqrt [ 124^{2} - 4*(-16)*(127) ] / 2 (-16)

-124 +- sqrt [15376 + 8128 ] / -32

-124 +- sqrt [23504 ] / -32

-124 +- 153.310 / -32

if we take the positive part it will become the negative time so skip that one try the negative part 1st

-124 - 153.310 / -32

-277.310 / -32

8.6659 seconds to hit the ground.    ( time of flight)  aka   TOF

8.67 seconds  ( rounded to nearest 100th)

 

3 0
3 years ago
8 hectograms = decagrams
ValentinkaMS [17]
It would equal 80 Decagrams
6 0
4 years ago
Read 2 more answers
Solve each system by substitution
anyanavicka [17]

Answer:

equalize the both sides of the functions

Step-by-step explanation:

4x-5 = 2x-5

4x = 2x

2x = x

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there is no answer for this problem

7 0
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(2,-1)<br> Is one of many solutions to the inequality:<br> X - 3y&lt;1<br> True or false?
aksik [14]

Answer:

False

Step-by-step explanation:

lets find out..

x - 3y < 1.....check (2,-1)....x = 2 and y = -1

now we sub

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5 < 1.......so is 5 less then 1 ? NO, it is not...so (2,-1) IS NOT a solution

5 0
3 years ago
Whats the value of 8:3 ?
umka2103 [35]

Answer:

As a mixed number, 8/3 is equal to 2-2/3.

Step-by-step explanation:

6 0
3 years ago
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