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3 years ago

What is communiative property?

Mathematics

2 answers:

Alisiya [41]3 years ago

8 0

Answer: Commutative Property is the one that refers to moving stuff around.

Step-by-step explanation: For addition, the rule is "a + b = b + a"; in numbers, this means 2 + 3 = 3 + 2. For multiplication, the rule is "ab = ba"; in numbers, this means 2×3 = 3×2.

Makovka662 [10]3 years ago

5 0

Answer:

Commutative Property is the one that refers to moving stuff around.

Step-by-step explanation:

For addition, the rule is "a + b = b + a"; in numbers, this means 2 + 3 = 3 + 2. For multiplication, the rule is "ab = ba"; in numbers, this means 2×3 = 3×2.

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A jar has 10 red marbles, 6 purple marbles, and 4 turquoise marbles. If you pull a red marble, you win nothing. If you pull a pu

Klio2033 [76]

Answer:

The expected value = -1.4 Dollars

Step-by-step explanation:

The number of red marbles = 10

The number of red purple = 6

The number of red turquoise = 4

The total number of marbles in the jar = 10 + 6 + 4 = 20 marbles

The prize won for pulling a red marble = 0

The prize won for pulling a purple marble = $2

The prize won for pulling a turquoise marble = $5

The probability of pulling a red marble = 10/20 = 1/2

The probability of pulling a purple marble = 6/20 = 3/10

The probability of pulling a turquoise marble = 4/20 = 1/5

Expected value, EV, probability is the foreseen or bankable future value value for a current investment. The expected value is found by finding the product of each outcome and the probability of occurrence of the outcome and then adding the values of the products together

To find the expected value, EV sum the prizes won multiplied by the probability of winning that prize and then subtract the cost of playing the game.

Therefore;

EV = 1/2×0 + 3/10×2 + 1/5 × 5 -3 = -1.4

The expected value = $(-1.4).

8 0

4 years ago

A hotel manager believes that 14% of the hotel rooms are booked. If the manager is right, what is the probability that the propo

lara [203]

Answer:

0.4996

Step-by-step explanation:

We are given;

Population proportion; p = 14% = 0.14

Sample size; n = 804

Sample proportion; p^ = 13% = 0.13

Standard deviation; σ = √np(1 - p)

σ = √(804 × 0.14 × (1 - 0.14))

σ = 9.8388

Formula for z-score is;

z = (p^ - p)/σ

z = (0.13 - 0.14)/9.8388

z = -0.01/9.8388

z = -0.001

From online z-score and probability converter attached, we have;

P(Z < -0.001) = 0.4996

5 0

3 years ago

PLS HELP!!! 20 POINTS!!!!!

sweet [91]

Answer:

the answer is D

Step-by-step explanation:

the answer will be D

8 0

3 years ago

Heeelllppp meeee please

garri49 [273]

A= 100; b= 0,9
f(x)= 100.(0,9)^x

3 0

2 years ago

Sami has a bag full of 4900 marbles of three different colors which include blue, green and black in the ratio 16:13:20. Find th

OLEGan [10]

Answer:

See the calculation below

Step-by-step explanation:

$16 + 13 + 20 = 49$

$blue = \frac{16}{49} \times 4900 \\ = 1600$

$green = \frac{13}{49} \times 4900 \\ = 1300$

$black = \frac{20}{49} \times 4900 \\ = 2000$

4 0

2 years ago

What is communiative property?​

What is communiative property?