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V125BC [204]
3 years ago
8

HURRY!!! Given the function find f(-1), f(0), f(2)

Mathematics
1 answer:
Zolol [24]3 years ago
7 0

Answer:

f(-1) = -10

f(0) = -6

f(2) = 8

Step-by-step explanation:

As the function says, when x is below 0, the part that we have to use is 7x-3, and when is equal or greater we use 7x-6.

We do so and just replace de values of x in each equation.

f(-1)=7(-1)-3=-10\\f(0)=7(0)-6=-6\\f(2)=7(2)-6=8\\

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25 x 1/5 = $5.00

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6 0
3 years ago
Read 2 more answers
The distribution of the number of viewers for the American Idol television show follows a normal distribution with a mean of 26
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Answer:

Probability that next week's show will have between 30 and 37 million viewers is 0.2248.

Step-by-step explanation:

We are given that the distribution of the number of viewers for the American Idol television show follows a normal distribution with a mean of 26 million with a standard deviation of 8 million.

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So, X ~ N(\mu=26,\sigma^{2}=8^{2})

Now, the z score probability distribution is given by;

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where, \mu = population mean = 26 million

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So, probability that next week's show will have between 30 and 37 million viewers is given by = P(30 < X < 37) = P(X < 37) - P(X \leq 30)

    P(X < 37) = P( \frac{X-\mu}{\sigma} < \frac{37-26}{8} ) = P(Z < 1.38) = 0.91621

    P(X \leq 30) = P( \frac{X-\mu}{\sigma} \leq \frac{30-26}{8} ) = P(Z \leq 0.50) = 0.69146

<em>Therefore, P(30 < X < 37) = 0.91621 - 0.69146 = 0.2248</em>

Hence, probability that next week's show will have between 30 and 37 million viewers is 0.2248.

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3 years ago
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