Answer:
176.37 pounds are in 80 kilograms
Step-by-step explanation:
The kilogram, or kilogramme, is the base unit of weight in the Metric system. It is the approximate weight of a cube of water 10 centimeters on a side.
A pound is a unit of weight commonly used in the United States and the British commonwealths. A pound is defined as exactly 0.45359237 kilograms.
where t = 0 corresponds to the end of 2001. Over that same period, the sales of film cameras (in millions of units) is given by
g(t) = −1.85t + 16.48 (0 ≤ t ≤ 3).
(a) Show that more film cameras than digital cameras were sold in 2001.
digital cameras
million
film cameras
million
(b) When did the sales of digital cameras first exceed those of film cameras?
Answer:
Step-by-step explanation:
The function representing the sales of digital cameras (in millions of units) in year t is
f(t) = 3.06t + 6.84 (0 ≤ t ≤ 3)
Also,
The function representing the sales of film cameras (in millions of units) is given by
g(t) = −1.85t + 16.48 (0 ≤ t ≤ 3)
a) where t = 0 corresponds to the end of 2001,
The number of digital cameras sold in 2001 would be
3.06 × 0 + 6.84 = 6.84 digital cameras.
The number of film cameras sold in 2001 would be
−1.85 × 0 + 16.48 = 16.48 film cameras.
Therefore, more film cameras than digital cameras were sold in 2001.
b) 3.06t + 6.84 = −1.85t + 16.48
3.06t + 1.85t = 16.48 - 6.84
4.91t = 9.64
t = 9.64/4.91 = 1.96
Therefore, the sales of digital cameras first exceed those of film cameras at t = 2 and that is in 2003.
Answer:
346
Step-by-step explanation:
i just talked to my teacher
8,12
Answer:
π/2 and π/3
Step-by-step explanation:
Given the equation 2cos²x - cosx = 0, to find the solution to the equation, we will follow the following step.
let P = cosx
The equation becomes 2P²-P = 0
P(2P-1) = 0
P = 0 and 2P-1 = 0
P= 0 and P = 1/2
Since P = cosx
cosx = 0 and cos(x) = 1/2
If cos(x) = 0
x = cos⁻¹0
x = 90⁰
x = π/2
If cos(x) = 1/2
x = cos⁻¹1/2
x = 60⁰
x = π/3
Hence the solutions to the equation are π/2 and π/3.
20 cm³ of pure alcohol is added to 10 cm of a 10% alcohol solution to strengthen it to a 70% solution.
Let x represent the volume of pure alcohol (100%) in cm³ needed to be added. Hence:
x * 100% + 10 cm³ * 10% = 70% * (x + 10 cm³)
x * 1 + 10 * 0.1 = 0.7 * (x + 10)
x + 1 = 0.7x + 7
x - 0.7x = 7 - 1
0.3x = 6
x = 20 cm³
Therefore 20 cm³ of pure alcohol is added to 10 cm of a 10% alcohol solution to strengthen it to a 70% solution.
Find out more on equation at: brainly.com/question/13763238
Answer:
20 cm³
Step-by-step explanation: