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2 years ago

The rule that refers to grouping is blank property

Mathematics

2 answers:

baherus [9]2 years ago

5 0

Answer:

associative property

Step-by-step explanation:

Grouping like this

a + (b + c) = (a + b) + c

a(bc) = (ab)c

is the associative property

Degger [83]2 years ago

5 0

Answer= Associative Property

Step-by-step explanation:

Affiliate. The word "associative" comes from "associate" or "group"; the Associative Property is the rule that refers to grouping. For addition, the rule is "a + (b + c) = (a + b) + c"; in numbers, this means 2 + (3 + 4) = (2 + 3) + 4.

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Ahmed wants to buy one of two skateboards. One skateboard costs $1 more than the

Papessa [141]

Answer:

1 skateboard will cost $73 and the other will cost $72

Step-by-step explanation:

Skateboard A (Original) = X

Skateboard B (+$1) = X + 1

Solving for X

(x + 1) + x = 145

2x + 1 - 1 = 145 - 1

2x = 144

2/2 = x

144/2 = 72

x = 72

4 0

2 years ago

Find f(x) - g(x) *

Studentka2010 [4]

Answer:

3x^3+13x^2-3x+7

Step-by-step explanation:

I dont know if your question is complete.

f(x) - g(x)

$(4x^3+6x^2-3x+9)-(x^3-7x^2+2)\\4x^3+6x^2-3x+9-x^3+7x^2-2\\3x^3+13x^2-3x+7$

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2 years ago

Is 30.030 greater than, less than, or equal to 30.03

finlep [7]

Answer:

equal

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

From 3 cups of the secret recipe, 5 pies can be made.

Vsevolod [243]

3/5=x/20

x = 3/5 * 20

x=12 cups

So, C is the answer

3 0

2 years ago

Children arrive at a house to do Halloween trick-or- treating according to a Poisson process at the unlucky rate of 13/hour. Wha

Art [367]

Answer:

0.4204 probability, option b.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

Children arrive at a house to do Halloween trick-or- treating according to a Poisson process at the unlucky rate of 13/hour

13 arrivals during an hour, which means that the mean time between arrivals, in minutes is of $\mu = \frac{13}{60} = 0.2167$

What is the probability that the time between the 15th and 16th arrivals will be more than 4 minutes ?

This is P(X > 4). So

$P(X > 4) = e^{-0.2167*4} = 0.4204$

So the correct answer is given by option b.

3 0

2 years ago