2 years ago

Which best represents the commutative property of addition?

Mathematics

2 answers:

weqwewe [10]2 years ago

7 0

Answer: a+b=b+a

Step-by-step explanation: 4 + 2 = 2 + 4 4 + 2 = 2 + 4 4+2=2+44

sineoko [7]2 years ago

6 0

Answer:

25+25+25+25+25...etc

Step-by-step explanation:

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AlexFokin [52]

Answer:

Step-by-step explanation:

x-3 = 0

x = 3

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x = -4

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8 0

3 years ago

A measure of ________ for a numerical data set describes how its values vary with a single number

uysha [10]

The answer is variation.

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2 years ago

A certain type of flashlight requires two type-D batteries, and the flashlight will work only if both its batteries have accepta

VikaD [51]

Answer: Our required probability is 0.167.

Step-by-step explanation:

Since we have given that

n = 15

Probability of success p = 80% = 0.8

Probability of failure q = 20% = 0.2

We need to find the probability that at least fourteen will work.

So, by Binomial distribution, we get that

$P(X\geq 14)=P(X=14)+P(X=15)\\\\P(X\geq 14)=^{15}C_{14}(0.8)^{14}(0.2)+^{15}C_{15}(0.8)^{15}\\\\P(X\geq 14)=0.167$

Hence, our required probability is 0.167.

4 0

3 years ago

Find the gradient of the line segment between the points (2,3) and (4,7)

garik1379 [7]

Answer:

1/2

Step-by-step explanation:

take change in X divided by change in Y values

5 0

2 years ago

Solve: 3(3x+4)+6= 54 pls help asap<br>

fiasKO [112]

Answer: x = 4

Step-by-step explanation:

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3 years ago