Answer:
4492 years (to the nearest year)
Step-by-step explanation:
The quantity of radium left after a time t can be modeled using the equation below:
Given that:
The amount of radium left after a t years is:
If the quantity left is 10 mg, then:
Changing to logarithm form
In 4492 years, 10 mg of Radium will be left.
Answer:
Triangle HIK is congruent to triangle JGK
KI = KG (CPCT)
HK = JK (CPCT)
Angle HKG = angle JKI
Therefore triangle HKG is congruent to triangle JKI
GH = IJ (CPCT)
Hope this helps!
Please leave out "suck at math" comments; such a comment helps no one, least of all you.
<span>7x + 1 < 4(x - 2)
Distribute that multiplier 4: </span><span>7x + 1 < 4x - 8
Subtr. 4x from both sides: 3x + 1 < -8
Subtr. 1 from both sides: 3x < - 9
Divide both sides by 3: x < -3 (answer)</span>
Answer:
perimeter: 36
area: i dont know sorry
Step-by-step explanation:
The LCD is 6 on the left and 9 on the right.