Answer:
(0,-29) x = 0, y = -29
Step-by-step explanation:
Answer:
20 grams of butane
Step-by-step explanation:
C4H10 is butane
Answer:
It'll take approximately 9.1 minutes
Step-by-step explanation:
The decay of this element can be modeled by the following expression:
m(t) = 540*(1 - 0.179)^t
Where m is the mass of the element in a given minute t. This expression comes from a compounded interest formula, with negative rate, since they will work in the same manner. Therefore to find how long until it reaches 90 g, we need to make m = 90 and solve for t.
90 = 540*(0.821)^t
(0.821)^t = 90 / 540
(0.821)^t = 1/6
ln(0.821^t) = ln(1/6)
t*ln(0.821) = ln(1) - ln(6)
t*ln(0.821) = - ln(6)
t = -ln(6)/ln(0.821) = 9.08452
It'll take approximately 9.1 minutes
Answer:
A: true
B: true
C: false
D: true
E: true
Step-by-step explanation:
A: always true, m is the slope, and b is the y-intercept (starting value)
B: always true, m is always constant within the equation
C: false, initial value can be 0, e.g. in the equation y=5x, the initial value is 0
D: always true, being a line is part of the definition of linear
E: true, if the equation is in the form x = [a number], it is a vertical line where the x value is always the given number
If you need help understanding anything, feel free to ask in the comments!
Answer:
6.85% decrease
Step-by-step explanation:
Initial Price = $3.65
Final Price = $3.40
Difference in price = Final - Initial = $3.40 - $3.65 = - $0.25
The negative sign indicates that the price decreased hence we can say that the decrease is positive $0.25.
% decrease
= (Amount decreased / initial price) x 100%
= (0.25 / 3.65) x 100%
= 6.85% decrease
