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Yakvenalex [24]
3 years ago
10

(x+2)^2+(x-3)^2-2x^2)

Mathematics
1 answer:
garri49 [273]3 years ago
4 0

Answer:

<u>13 - 2x </u>

Step-by-step explanation:

(x +2)² + (x - 3)² - 2x²

<em>Expand.</em>

(x + 2)(x + 2) + (x - 3)(x - 3) - 2x²

x² + 2x + 2x + 4 + x² - 3x - 3x + 9 - 2x²

<em>Bring all the like terms together then simply.</em>

x² + x² - 2x² + 2x + 2x - 3x - 3x + 4 + 9

2x² - 2x² + 4x - 6x + 13

= <u>13 - 2x</u> (or <u>-2x + 13</u> )

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(9 – 6i) × m = 9 – 6i<br> What is m?<br><br> 0<br><br> 1<br><br> 9 + 6i<br><br> -9 + 6i
GuDViN [60]

Answer:

1

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A sketch artist sells on demand portraits and name doodles at the state fair. The artist has a personal maximum of 40 creations
MakcuM [25]

Answer:

profit will be maximized by making 20 doodles and 20 paintings = ($10 x 20) + ($20 x 20) = $600

Step-by-step explanation:

we have to maximize the following equation:

$10P + $20D

where:

P = number of portraits

D = number of doodles

the constraints are:

P + D ≤ 40

P ≤ 30

D ≤ 20

we do not need to use solver or any other type of linear programming tool to solve this, since profit will be maximized by making 20 doodles and 20 paintings = ($10 x 20) + ($20 x 20) = $600

8 0
3 years ago
I need help on this asap thanks
lina2011 [118]
1st find the averages of each one:

Elizabeth average of reading in min =(18+36+15+45+88+57+12)/7 =38.71 min

Sam average of reading in min =(17+52+48+35+13+71+16)/7 =36 min


question:

1) No
2) YES. [the range is te difference between the largest & the smallest)
Eliz Range = 88-12 =76 & Sam's= 71-13 = 58

3) NO. Sam 71 min & Eliz 88 min

4) YES. Median Eliz =45 min. Median Sam =35 min
4 0
2 years ago
T or F:
Marina CMI [18]

Answer:

true because you can do that in a amound of the total

3 0
2 years ago
NEED HELP PLEASE WILL GIVE BRAINLIEST
kolbaska11 [484]

Answer:

it is A or D

Step-by-step explanation:

8 0
3 years ago
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