Answer:
Step-by-step explanation:
Given
Half life of radioactive substance is
Initial amount
Amount left at any time is given by
It takes 26.4 days to reach 2 gm.
Answer:
slope=1/4
y-intercept=3
y=.25x+3
Step-by-step explanation:
slope=rise over run so
slope=1/4
y-intercept is the value of y where the line crosses the y axis..
y-intercept=3
In y=mx+b form m is slope and b is y-intercept so...
y=.25x+3
Answer:
Step-by-step explanation:
Confidence interval measures the degree of uncertainty and certainty and comprises a range of values that might contain an unknown population parameter. A 99% confidence interval means we can expect that 99% of the 18 samples taken contains the parameter mean values between the upper and the lower bound values from the data collected from the 18 CEOs.
Answer:
Step-by-step explanation:
X²-30=7x
x²-7x-30=0
something times something = -30
something + something -7
(x+3) (x-10)=0
x= -3 and 10