Answer:
Step-by-step explanation:
<u>Given</u>
<u>Solving for n</u>
- 4(0.5n) - 4(3) = n - 0.25(12) + 0.25(8n)
- 2n - 12 = n - 3 + 2n
- -12 = n - 3
- n = 3 - 12
- n = -9
Let me show you how you could have answered this question
without using your computer:
Try out different numbers:
Guess a number.
Square it.
- If the result is less than one of the choices, try a larger number.
- If the result is more than one of the choices, try a smaller number.
- If the result is equal to one of the choices, then that choice is a perfect square.
Try 10.
10 squared =100.
Too small. Try bigger.
Try 20.
20 squared = 400.
Still too small, but getting close. Try bigger.
Try 25.
25 squared = 625
Too big. Try smaller.
Try 23.
23 squared = 529.
Still too big. Try smaller.
Try 21.
21 squared = 441.
Too small, but look where you are now:
21 is too small, and 23 was too big.
Does that give you any ideas ?
What do you think you should try next ?
Try 22.
22 squared = <em>484</em>. <em>
</em>484 is a perfect square.<em> yay !</em>
None of the other choices is a perfect square, because we
already know that 23 squared is bigger than all of them.
Answer:
The height is 4.
Step-by-step explanation:
<em><u>Plz mark as brainliest if this helped! Have a nice day!!!</u></em>
<em><u>-Lil_G</u></em>
Answer:
|-3|+|3|=0
Step-by-step explanation:
Remove the lines, and it's regular addition.
-3+3 would equal 0.
Is there a number to letter chart or not because if not its going to b a little difficult