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3 years ago

Terms and like terms in the expression 4a−9+3a.

Mathematics

1 answer:

bagirrra123 [75]3 years ago

4 0

Examples to help:

2a + 4 (Unlike terms cannot be simplified)

4a + 3b (Unlike terms cannot be simplified)

6a – 3a = 3a

8b – 8b = 0

5a – 3 (Unlike terms cannot be simplified)

6a – 4b (Unlike terms cannot be simplified)

These are not the awnsers they are just examples

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Nathan orders a large pizza (14-inch diameter). He is hungry and decides to eat half of the pizza. What is the surface area of t

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1/2(π x 7²)

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2 years ago

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4 years ago

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John bought three times as many Cokes as Dr. Peppers for his party. If he bought a total of 144 Cokes and

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Step-by-step explanation:

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3 years ago

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Seven members of a Girl Scout troop report the following individual earnings from their sale of candy: $4, $1, $7, $6, $8, $2, a

Radda [10]

Answer:

(B) the mean is less than the mode and less than the median.

Step-by-step explanation:

Mean, Median, Mode is used to calculate the central tendency of the distribution.

Mean is defined as,

$Mean = \dfrac{Sum of all observation}{Total number of observation}\\ \ \ \ \ \ \ \ \ = \dfrac{4+1+7+6+8+2+7}{7}$

∴ Mean = 5

Median is the middle observation of the distribution after arranging it in ascending or descending order.

So, arranging distribution in ascending order we get,

$1, $2, $4, $6, $7, $7, $8

Also, a number of observation is 7 which is an odd number.

Hence, $Median = (\frac{Number of observation + 1}{2})^{th} term$

⇒ $Median = (\frac{7 + 1}{2})^{th} term$

⇒ Median = 4th term = 6

Mode is the observation which has highest frequency.

Here, only $7 is repeated 2 times.

Hence, Mode = 7.

Hence, we see that Mean < Median < Mode

So, Option (B) is correct i.e. mean is less than the mode and less than the median.

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4 years ago