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juin [17]
4 years ago
15

Show your work. (x^2 + 2x +3)(x^2 - 2x -2)

Mathematics
1 answer:
Fudgin [204]4 years ago
5 0
I got:
by multiplying each factor....
x^4 - 2x^3 - 2x^2 + 2x^3 - 4x^2 - 4x + 3x^3 - 6x - 6
then combining like terms....
answer is:
x^6 - 3x^2 - 10x - 6
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Write 3.9 as a mixed number?
LiRa [457]

Answer:

3 9/10

Step-by-step explanation:

First the "whole number" part is 3.

The decimal part is 0.9. To convert that, keep the 9. Since the 9 is in the tenths place, it is 9/10.

Add them together: 3+9/10= 3 9/10

Final answer 3 9/10

Hope this helps

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
All regular polygons:
Andrews [41]

Answer:

all regular polygons are symmetrical!!

hope this helped!

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Is 130 ounces greater than or less than or equal to 8 pounds
Andrei [34K]
(16 ounces = 1 pound)

130 ounces = 8.125 pounds

130 ounces is greater than 8 pounds.

HOPE THIS HELPED
:)
5 0
3 years ago
How many times does 4 go into 50
ArbitrLikvidat [17]
<span><u><em>Answer:</em></u>
12 times.<span>

<u><em>Explanation:</em></u>
To find how many time a number goes into another number we will divide it </span></span>\frac{50}{4}<span><span> is 12.5, so 4 goes into 50, 12 times because 12*4=48. 50 and 48 have a difference of 2.</span></span>
3 0
4 years ago
Read 2 more answers
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