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Viktor [21]
3 years ago
14

When we use energy the energy is destroyed true or false​

Mathematics
1 answer:
strojnjashka [21]3 years ago
8 0
False. Energy can not be destroyed
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Homework I have to turn in on Monday please help
nasty-shy [4]

Answer:

If you're trynna simplify these are the answers:

4.) -116

5.) -13

Step-by-step explanation:

4.) −4((5)(4)+9)

=(−4)((5)(4)+9)

=(−4)((5)(4))+(−4)(9)

=−80−36

=−116

5.) 9+84−(6)(4)

=9+2−(6)(4)

=11−(6)(4)

=11-24

= -13

5 0
3 years ago
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Help!!!!!!!!!!!!!!!!!!!!
Sauron [17]
21 not sure but you can do it
6 0
3 years ago
Evaluate f(x) = 4x + 3x^2 − 5 when x = -2.<br> 23<br><br><br> -1<br><br><br> -25<br><br><br> -49
frozen [14]

Answer:

f(-2) = -1

Step-by-step explanation:

One way of doing this is to substitute -2 for x in every place where x shows up:

f(x) = 4x + 3x^2 − 5  →  f(-2) = 4(-2) + 3(-2)^2 − 5  

                                 → f(-2)  = -8    + 3(4) -   5, or f(-2) = 4 - 5, or f(-2) = -1

5 0
3 years ago
First one right gets BRAINLIEST!!<br><br> If f(x)=x²+2x-3 and g(x)=x²-9, find (f/g) 4 and (f+g)(4)
Rasek [7]

Answer:

3 and 28

Step-by-step explanation:

note (\frac{f}{g} )(x ) = \frac{f(x)}{g(x)}

\frac{f(x)}{g(x)}

= \frac{x^2+2x-3}{x^2-9}  and

(\frac{f}{g} )(4) = \frac{4^2+2(4)-3}{4^2-9} = \frac{16+8-3}{16-9} = \frac{21}{7} = 3

-------------------------------------------------------

(f + g)(x) = f(x) + g(x)

f(x) + g(x)

= x² + 2x - 3 + x² - 9 = 2x² + 2x - 12 and

(f + g)(4) = 2(4)² + 2(4) - 12 = 2(16) + 8 - 12 = 32 + 8 - 12 = 28

6 0
3 years ago
Either Roman has a date with Malou, or Jeff is sleeping or Hadji is eating.
hjlf
Given that o<span>ne Friday night, Roman and Malou are busy studying for their Logic exam. Meanwhile, Hadji just tweeted a picture of himself eating crispy pata and sisig. Jeff is sound asleep in his dorm room.

Part A:

The truth value of </span>"Either Roman has a date with Malou, or Jeff is sleeping or Hadji is eating." is obtained as follows:

From the scenario, the truth value of the individual statements are as follows:

<span>Roman has a date with Malou is True
</span>
<span>Jeff is sleeping is True
</span>
<span>Hadji is eating is True

Thus, the truth value of "True" or "True" or "True" is True.

Therefore, the truth value of "</span><span>Either Roman has a date with Malou, or Jeff is sleeping or Hadji is eating." is True.



Part B:

</span>The truth value of "Either Jeff is sleeping or Hadji is not eating" is obtained as follows:

From the scenario, the truth value of the individual statements are as follows:

<span>Jeff is sleeping is True
</span>
<span>Hadji is not eating is False

Thus, the truth value of "True" or "False" is True.</span>

Therefore, the truth value of "Either Jeff is sleeping or Hadji is not eating" is True.



Part C:

The truth value of "Roman and Malou are on a date and Jeff is sleeping, or Hadji is not eating." is obtained as follows:

From the scenario, the truth value of the individual statements are as follows:

Roman and Malou are on a date is True

<span>Jeff is sleeping is True
</span>
<span>Hadji is not eating is False

The truth value of "True" and "True" is True.
The truth value of "True" or "False" is True.

Thus, the truth value of ("True" and "True") or "False" is True.
</span>
Therefore, the truth value of "Roman and Malou are on a date and Jeff is sleeping, or Hadji is not eating." is True.
6 0
3 years ago
Read 2 more answers
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