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Mathematics

2 answers:

Sloan [31]3 years ago

7 0

Answer: A

Step-by-step explanation:

kramer3 years ago

6 0

Answer:

I got f^-1(x)= 5x-3

You switch x and y (because f(x) is basically y) so then it's a two-step equation.

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6% of what number is 30

uranmaximum [27]

1.8 is 6 percent of 30

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3 years ago

The following table shows the probability of rolling the numbers 1 through 7

Marysya12 [62]

Answer:

2.0

Step-by-step explanation:

Couldn't really understnd what you wrote but I'll assume it's the standard deviation of a fair, 7-sided die

The standard deviation is just the square root of the variance (which is just the second moment minus the first moment squared)

The first moment (AKA the average is..)

$\frac{1+2+3+4+5+6+7}{7}=4$

The second moment is..

$\frac{1^2+2^2+3^2+4^2+5^2+6^2+7^2}{7}=20$

$\sqrt{20-4^2}=2$

4 0

3 years ago

Solve the inequality. -x ≤ 5

yanalaym [24]

The answer is x ≥ −5

6 0

3 years ago

Read 2 more answers

The population of Smallville can be found by the equation Pt) = le", where P(t) is the

pashok25 [27]

Answer:

The population of the town in the year 1962 will be 1730.

Step-by-step explanation:

The population of Smallville can be found by the equation $P(t) = Ie^{rt}$ , where P(t) is the population at time t, r represents the rate of growth, and I is the initial population.

Now, if there are 225 residents in 1950 and the population of the town grows at a rate of 17% per year, then the population of the town in the year 1962 will be $P(12) = 225 e^{0.17 \times 12} = 1730$ (Approximate)