Answer:
5900 units per year
Step-by-step explanation:
The average rate of change from (x₁, y₁) to (x₂, y₂) is the slope of the straight line joining the two points.
slope = (y₂ - y₁)/(x₂ - x₁)
From the graph, I estimate your points to be (2006, 35 000) and (2015, 88 000).
slope = (88 000 - 35 000)/(2015 - 2006) = 53 000/9 ≈ 5900 units per year
The average rate of change in the number of digital cameras sold between 2006 and 2015 was 5900 units per year.
Answer:
x = ±√11 +2
Step-by-step explanation:
Given in the question an equation,
x²- 4x - 7 = 0
Step 1
take 7 to the right side of equation
x²- 4x = 7
Step 2
To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b, the coefficient of x
2ab = -4x
2xb = -4x
b = -2
Step 3
Take square of b and add it to each side of the equation.
x²- 4x + (-2)²= 7 + (-2)²
x²- 4x + 4 = 7 + 4
x²- 4x + 4 = 11
Step 4
Factor the perfect trinomial square
(x−2)² = 11
Step 5
take square root on both sides
√(x−2)² = √11
(x-2) = ±√11
x = ±√11 +2
1/6*1/6*1/6*1/6 = 1/1296 = 0.078% probability of ANY 4-letter sequence (including qqqq)
1000/1296 is less than 1.
Expected number of times qqqq (or any given 4-letter sequence) will appear in 1000 letters is 0.
X=15-Elmohahsbssbssusueheh
Answer:
x =±sqrt(225) = ±15
Step-by-step explanation:
x^2 = 225
Take the square root of each side
sqrt(x^2) = ±sqrt(225)
x =±sqrt(225) = ±15
