Answer: 7) 50.27 8) 251.33 9) 235.62 *These answers were calculated using the true value of pi, not 3.14*
Answer:
110888
Step-by-step explanation:
v=surface area *radius
v=528*21=110888cm3
945 minutes.
10% of 450 is 45. 450 + 45 = 495. 450 + 495 = 945.
Answer:
1845 years
Step-by-step explanation:
Decay of Carbon-14 is usually modeled by an exponential function. It x is the number of years since the original amount was brought into existence, then the fraction remaining (y) is modeled by ...
... y = (1/2)^(x/5730)
We want to find the value of x when y = 80% = 0.80. The equation is then ...
... 0.80 = 0.50^(x/5730)
Taking logarithms, we get
... log(0.80) = (x/5730)·log(0.50)
Multiplying by the inverse of the coefficient of x, we have
... x = 5730·log(0.80)/log(0.50) ≈ 1845 . . . . years
Answer:
The graph of the line is attached below.
Step-by-step explanation:
According to the slope-intercept form
As the line equation is given by
y-intercept = b = -2
The graph of the line is attached below.
