All categories

3 years ago

(assume no variable equals 0) PLEASE HELP

Mathematics

1 answer:

saw5 [17]3 years ago

5 0

$(3n^2 + 1) + (8n^2 - 8)\\= 3n^2 + 1 + 8n^2 - 8\\= 11n^2 - 7$

You might be interested in

25 is how much more than 20? what percent more?

Firdavs [7]

25 is 5 more than 20 which is 25% more since 5/20 = 1/4 = 25%
To check (1.25 * 20 = 25)

7 0

3 years ago

Read 2 more answers

HELP ASAP SHOW WORK TOO!!! THANKS

lukranit [14]

Hope this is what you’re looking for!

8 0

3 years ago

5(2+x)+2=32 what is x

pentagon [3]

10+5x+2=32 5x+12=32 5x=20 x=4

4 0

3 years ago

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.

8 0

4 years ago

HELP! Drag each scenario to show whether the final result will be greater than the original value, less than the original value,

kogti [31]

Answer:

Same as the original:

-->A 15% increase followed by a 15% decrease

--> A 25% decrease followed by a 50% increase

-->A 50% decrease followed by a 100% increase

Greater than the Original:

-->A 20% decrease followed by a 25% decrease

Less than the Original:

-->A 75% increase followed by a 50% decrease

Step-by-step explanation:

Example#1: I did 15% increase is 15% so followed by a -15%(decrease). The sale stayed the same.

Example#2: -20%+25%=5% *greater than the original

Example#3: If the percentage came to 0%, it stayed the same(same as original.)

Hope this helps!!

5 0

3 years ago

Read 2 more answers