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2 years ago

I need help with 7,8,and 9 please it’s due tomorrow

Mathematics

1 answer:

Afina-wow [57]2 years ago

3 0

The correct answer is c d b if you have any other question feel free to contact me

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A continuous random variable X has cdf F(x)=x² b (a) Determine the constants a and b. for a < 0, for 0 < x < 1, for x &

Karolina [17]

Any proper CDF $F(x)$ has the properties

• $\displaystyle \lim_{x\to-\infty} F(x) = 0$

• $\displaystyle \lim_{x\to+\infty} F(x) = 1$

so we have to have a = 0 and b = 1.

This follows from the definitions of PDFs and CDFs. The PDF must satisfy

$\displaystyle \int_{-\infty}^\infty f(x) \, dx = 1$

and so

$\displaystyle \lim_{x\to-\infty} F(x) = \int_{-\infty}^{-\infty} f(t) \, dt = 0 \implies a = 0$

$\displaystyle \lim_{x\to+\infty} F(x) = \int_{-\infty}^\infty f(t) \, dt = 1 \implies b = 1$

8 0

2 years ago

Papa john is 50 years old. His age is 2 years more than 3 times the age of jimmy John

kakasveta [241]

Jimmy John is sixteen

7 0

3 years ago

Read 2 more answers

The recipe for a fruit salad calls for 5 bananas, 3 peaches, 2 apples, 1 pear, 8 strawberries, 1 cantaloupe, and 2 oranges. What

NARA [144]

Answer:

3:22

Step-by-step explanation:

there are three peaches, so the peach value of the peaches in the will be three

adding all the other fruits gives you 22, so the value of the total in the ratio is 22

therefore the ratio is 3 peaches to 22 fruits

which is expressed as

3:22

6 0

2 years ago

7. When running you discover you are only in second place. You were initially running at a speed of 18 km/h and

ankoles [38]

Step-by-step explanation:

check it out.

Hope it helps.

7 0

3 years ago

Read 2 more answers

Select the points that lie on the function g(x) = -x2 (Choose all that apply.) (0, 0) (-3, -9) (3, -9) (-3, 9)

Evgesh-ka [11]

The function is :

$\displaystyle{ g(x)=-x^2$ ,

which means that "g of a number" is equal to "negative, the square of that number".

According to the function we calculate g(0), g(-3), g(3) as follows:

$g(0)=-0^2=-0=0\\\\g(-3)=-(-3)^2=-9\\\\g(3)=-3^2=-9$

This means that we have the points (0, 0), (-3, -9), and (3, -9) lying on the graph of the function.

Answer: (0, 0), (-3, -9), (3, -9)

4 0

2 years ago