Answer:
Triangle
Step-by-step explanation:
Answer:
464 grams.
Step-by-step explanation:
Amount of substance:
The amount of substance after t years is given by an equation in the following format:
In which A(0) is the initial amount and r is the decay rate, as a decimal.
Co-60 has a half life of 5.3 years.
This means that:
We use this to find r. So
![\sqrt[5.3]{(1-r)^{5.3}} = \sqrt[5.3]{0.5}](https://tex.z-dn.net/?f=%5Csqrt%5B5.3%5D%7B%281-r%29%5E%7B5.3%7D%7D%20%3D%20%5Csqrt%5B5.3%5D%7B0.5%7D)
So
If a pellet that has been in storage for 26.5 years contains 14.5g of Co-60, how much of this radioisotope was present when the pellet was put in storage?
We have that 
, and use this to find A(0). So
[tex]A(0) = 464[tex]
464 grams.
Answer:
(18,2)
Step-by-step explanation:
Let's start by determining the transformation of Rectangle J′K′L′M′
We can look at L.
In the original rectangle, L is at (-4,-2)
In the transformation, L' is at (9,-5)
|-4-9|=|-13|=13
|-2-(-5)|=|-2+5|=3
So the transformation is 13 units right and 3 units down.
In trapezoid STUV, the coordinates of T are are (5,5)
We need to move it 13 units left and 3 units down.
This means we add 13 to the x coordinate and subtract 3 from the y coordinate.
5+13=18
5-3=2
The location of T' will be (18,2)
For 1, you need to convert the blank spaces into either feet or inches (the top spaces will be feet and the bottom spaces will be inches).
2 is the same thing, except the top blank spaces will be inches and the bottom spaces will be feet. A ratio is a fancy word for fraction, in this case: inches over feet. To find what each ratio is equal to, divide the top number by the bottom number of each ratio, and that is your answer.
3 is also simple. Try not to overthink it! Make the equation y=. So, you want it to look like inches=a number of feet * feet. This is just what you use to convert feet to inches, if that makes better sense.
If you need more help on the equation, ask me. You can ask me if you got the correct equation if you would like. :)
Hope this helps!
