Answer:
9
Step-by-step explanation:
shorter leg = x
longer leg = x + 3
Hypotenuse = x + 6
x² + (x + 3)² = (x + 6)²
x² + x² + 6x + 9 = x² + 12x + 36
2x² + 6x + 9 = x² + 12x + 36
x² - 6x - 27 = 0
(x - 9) ( x + 3) = 0
x = 9 or x = -3 (rejected)
Answer:
Step-by-step explanation:
Well looking it up on my link bar if you look up on google there's an answer key which for me its the second link on google!!
92% of ? = 345
92% = 345
1% = 345/92
1%=3.75
3.75x100 = 375
92% of 375 = 345
Answer:
Step-by-step explanation:
The time constant for the isotope decay is:
Now, the decay of the isotope is modelled after the following expression:
The time is now cleared with some algebraic handling:
Finally, the time need for the element X to decay to 43 grams is:
Answer:
B.
Step-by-step explanation:
hope it helps :)