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3 years ago

Please need help asap! could you give me the equation to fill in the blanks and not the total

Mathematics

1 answer:

Gennadij [26K]3 years ago

7 0

Answer:

find it yourself!!!!!!!!!what is google meant for ???????use meritnation

Step-by-step explanation:

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Whoever is willing to help I will give extra point I will probably get some done myself but I will need help with the rest

Monica [59]

Answer:

are you just listing defnitions or what

Step-by-step explanation:

5 0

2 years ago

Find the expected value of the winnings from a game that has the following payout probability distribution: Skip Payout ($) 1 2

Nezavi [6.7K]

Answer:

$4.35

Step-by-step explanation:

The expected value of a random variable <em>X</em>, often denoted as E(<em>X</em>), indicates the probability-weighted average of all possible values/events. The general formula of expected value is

$\mathrm{E(\textit X \mathrm)} = \displaystyle\sum_{\mathclap{i=1}}^{k} \ X \times P(X) \\ \\ \\ = X_{1} \times P(X_{1}) \ + \ X_{2} \times P(X_{2}) \ + \ X_{3} \times P(X_{3}) + \ \cdots \ + X_{k} \times P(X_{k})$ .

Therefore, the expected value of the winnings from a game is

$\mathrm{E(\textit X \mathrm)} \ = \ 1 \times 0.35 \ + \ 2 \times 0.2 \ + \ 5 \times 0.1 + \ 8 \times 0.2 \ + 10 \times 0.15 \\ \\ = \ 4.35 \ \ (\mathrm{nearest \ hundredth})$ .

4 0

2 years ago

a jar contains 30 red, 40 blue, and 59 white buttons. you pick one button at random, .find the probability that it is blue

Cerrena [4.2K]

Answer:

40/129

Step-by-step explanation:

30 Red + 40 Blue + 59 White = 129 marbles

40 blue / 129 marbles is about 31%

6 0

3 years ago

Is 0.2775 a rational number

Cerrena [4.2K]

Answer:

yes it is

Step-by-step explanation:

It is a rational number, as it can be written as a fraction.

3 0

2 years ago

(T 4 Marks + C 1 Marks)

bija089 [108]

Answer:

<h2>length= 40cm</h2><h2>width= 120cm</h2><h2>Step-by-step explanation:</h2>

Area of a rectangle= lenght× width

Dimensions of 1st rectangle: L,W

Dimensions of 2nd rectangle: L+10; W+4

Hence,

LW = 480__________(1)

(L-10)(W+4) = 480_______(2)

LW = LW+4L - 10W - 40

4L = 10W +40

2L = 5W + 20

L = (5/2)W + 10_________(3)

But LW = 480 (from equation one)

So, W = 480/L

substitute as= 480/L into equation (3)

L = (5/2)(480/L)+10

L = 1200/L + 10

L^2 - 10L - 1200 = 0

factorising.

we're have,

(L-40)(L+30) = 0

therefore, since L can't be negative , L = 40

L = 40 cm (length)

Then 480/L = W = 120 cm (width)

<h2>therefore L= 40cm and W= 120cm</h2>

4 0

2 years ago