2 years ago

The probability distribution for a random variable x is given in the table.

Mathematics

1 answer:

Aleksandr [31]2 years ago

4 0

Answer:

30%

Step-by-step explanation:

The sign means that x can be equal to or LESS than -3. The only ones are -3 and -5. 0.17+0.13=0.30

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Answer:

The area of the base plate is 120 in

Step-by-step explanation:

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3 years ago

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I need algebra help.....

Lubov Fominskaja [6]

Answer:

$y=4(3)^x$

Step-by-step explanation:

From the table given in the question,

x y Difference Ratio

1 12 - -

2 36 36-12 = 24 $\frac{36}{12}=3$

3 108 108-36 = 72 $\frac{108}{36}=3$

4 324 324-108 = 216 $\frac{324}{108}=3$

5 972 972-324 = 648 $\frac{648}{216}=3$

There is a common ratio of 3 in each successive term.

Therefore, data given in the table will represent an exponential function.

$y=a(b)^x$

For a point $(1, 12),$

$12=a(b)^1$

$ab=12$ ------(1)

For another point of the table $(2,36)$ ,

$36=a(b)^2$

$ab^2=36$ --------(2)

Equation (2) divided by equation (1)

$\frac{ab^2}{ab}=\frac{36}{12}$

$b=3$

From equation (1),

$3a=12$

$a=4$

Therefore, exponential function will be,

$y=4(3)^x$

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3 years ago

I just want to know if I’m right

Svetradugi [14.3K]

Answer:

correct

Step-by-step explanation:

supplementary is when 2 angles add up to 180

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3 years ago

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What’s the first 1st term in the sequence given by :T(n)=n^2-4<br> Pls help

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First term = T(1) is obtained by plugging n = 1 into the formula,

thus First term = 1^2 - 4 = 1 - 4

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3 years ago

Ashley has at most $75 to spend on clothes. She wants to buy a pair of jeans that cost $35 and the rest on t-shirts. T-shirts co

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Answer:

4 t-shirts

Step-by-step explanation:

75-35 = 40

at most she can buy 4, because if she buys 5, she uses 45 dollars

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2 years ago