Step-by-step explanation:
y=mx + b
m= slope
b= y-intercept
Equation: y=-4x-14
Slope: -4
y-intercept: -14
Slope: -12/+3
Simplify: m=-4
Y-Intercept: Line passes through (0, -14)
Evidence: Used the Slope Formula (y=mx+b) to find the slope and graphed the points to find the y-interception.
Log₂(6x) - log₂(√x) = 2
log₂[6x/√x] = 2, let's rewrite it in terms of exponent:
(remember : ㏒₂(x) = a (in exponential form) → x = 2ᵃ
6x/√x = 2²
6x/√x = 4, square both sides:
36x²/x = 16 .Simplify:
36x = 16 and x = 16/36 . So x = 4/9
X=-12
1) Divide -1/2 to six, so x is alone
2) Answer is -12
Answer:
Step-by-step explanation:
Slope = = =
The amount of substance left of a radioactive element of half life,
after a time, t, is given by:
Given that <span>potassium-40 has a half life of approximately 1.25 billion
years.
The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:
Therefore, </span><span>the maximum age of a fossil that we could date using 40k is
12.5 billion years.</span>