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vova2212
8 days ago
11

The amount of money in an account may increase due to rising stock prices and decrease due to falling stock prices. Marco is stu

dying the change in the amount of money in two accounts, A and B, over time.
The amount f(x), in dollars, in account A after x years is represented by the function below:

f(x) = 9,628(0.92)x

Part A: Is the amount of money in account A increasing or decreasing and by what percentage per year? Justify your answer. (5 points)

Part B: The table below shows the amount g(r), in dollars, of money in account B after r years:


r (number of years) 1 2 3 4
g(r) (amount in dollars) 8,972 8,074.80 7,267.32 6,540.59


Which account recorded a greater percentage change in amount of money over the previous year? Justify your answer. (5 points)
Mathematics
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Answer:

214

Step-by-step explanation:

The dimensions of the playing field are 53.33 yards wide and 120 yards long, requiring us to compute the area by multiplying 53.33 by 120 yards. This results in 6399.6. The thickness being applied is 1.2 millimeters. To find how many containers are needed, divide the area, 6399.6 by 1.2 which equals 5333. Finally, dividing that by 25 gallons gives us 213.32, so you need to buy 214 rounded.

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2 months ago
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Mia paints interior walls at a rate of 12 m^2/h. At what rate does she paint in cm^2/min?
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12 m^2/h to cm^2/min

12 m^2/h × 1 h/60 min = 0.2 m^2/min

0.2 m^2/min × 10000 cm^2/1 m^2 = 2000 cm^2/min

2000 cm^2/min
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3 months ago
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Graph a parabola whose xxx-intercepts are at x=-3x=−3x, equals, minus, 3 and x=5x=5x, equals, 5 and whose minimum value is y=-4y
AnnZ [12381]

Answer:

Vertex: (1, -4)

intercept: (-3, 0)

Step-by-step explanation:

Let's be honest, you're not here for a detailed breakdown; you simply want the answer.

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3 months ago
According to the rule of 72, if Arielle invests $100, $200, and $2000 into three separate accounts with the same interest rate,
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The rule of 72 provides a rough estimate for how long it takes for an investment to double, solely based on the interest rate. Therefore, the initial deposit does not influence this estimate. Each of the three accounts will take an equal time to double.

As long as all accounts are opened on the same day with identical interest rates and compounding periods, they will double simultaneously, whether calculated via the rule of 72 or through precise timing.
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The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,00
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Answer: the likelihood of a randomly selected tire lasting exactly 47,500 miles is 0.067

Step-by-step explanation:

Since the expected lifespan of this tire brand follows a normal distribution, we will use the normal distribution formula:

z = (x - µ)/σ

Where

x = lifespan of the tire in miles.

µ = mean

σ = standard deviation

The given figures include,

µ = 40000 miles

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For x = 47500,

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According to the standard normal distribution table, the probability associated with this z score is 0.067

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3 months ago
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