The first step for solving this expression is to write the division as a fraction.
× m³
Factor out 2 from the numerator (top) of the fraction.
× m³
Reduce the fraction with 2.
(-2
+
- 7
)m³
Lastly,, distribute m³ through the parenthesis to get your final answer.
-2
+
- 7
Let me know if you have any further questions.
:)
Answer:
(3,1.5)
Step-by-step explanation:
Finding the midpoint of 2 endpoints (or just two points) can be done with the equation (x1+x2)/2 and (y1+y2)/2. When I say x1 I mean the x-value of the first coordinate which would be -2 and when I say y1 i mean the y-value of the first coordinate which is 6. So plugging in the coordinates would give you (-2+8),(6+-3). Now you add your terms together and get the numbers (6) and (3). After that you must divide those number by two so (6)/2 and (3)/2 which would equal (3,1.5).
The amount of the substance (At) at any time t is calculated through the equation,
At = (A0)(e^-kt)
where A0 is the initial amount and k is constant.
For the half-life,
ln (At / A0) = ln 0.5 = -k(5270 years)
The value of k is 1.3153x10^-4 / year.
Substituting this value to the same equation, where At = 0.25A0
ln 0.25 = -(1.3153 x 10^-4)(t)
The value of t from this equation is 10540 years. The closest value to this is letter A.
I only know the labels I’m not sure abt the rest. K = (-4,4) L= (4,4) M = (4,-4) N = (-4,-4)
X-intercept: y = 0
y-intercept: x = 0
3x + 4y = 0
x-intercept: subtitute y = 0
3x + 4 · 0 = 0
3x = 0
x = 0 → (0; 0)
y-intercept: subtitute x = 0
3 · 0 + 4y = 0
4y = 0
y = 0 → (0; 0)
