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White raven [17]
2 years ago
10

I'm not sure how to solve this. please help​

Mathematics
1 answer:
zepelin [54]2 years ago
8 0

Answer:

The awnser is 2 and 3!!!!!!

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what algebraic expression must be added to the sum of 3x squared + 4x + 8 and 2x squared -6x + 3 to give 9x squared -2x - 5 as t
gregori [183]
<span>3x^2 + 4x + 8 + 2x^2 - 6x + 3 to give result as 9x^2 -2x - 5


</span>3x^2 + 4x + 8 + 2x^2 - 6x + 3 
= 5x^2 - 2x + 11

so

9x^2 -2x - 5 - (5x^2 - 2x + 11)
= 9x^2 -2x - 5 -  5x^2 +  2x - 11
= 4x^2 -16

answer

expression (4x^2 -16) must be added to the sum of (3x^2 + 4x + 8) and (2x^2 - 6x + 3) to give the result as (9x^2 - 2x - 5)
3 0
3 years ago
Which would you consider to be more accurate, a probability experiment of 10 trials or a probability experiment of 100 trials
Marat540 [252]
I would 100 because the more the trials means the more the results which means you get more of an accurate experiment then if you only did 10. Because since you have so many answers from all of the experiments you can conclude the correct answer from all of the experiments. I hope you get what I’m trying to say
8 0
3 years ago
43 points, 86 for brainliest! Answer correct!! Be wise! According to the image attached, whats the answer?
Snezhnost [94]

Answer:

p = 32\:  \: in

a = 49 {in}^{2}

Step-by-step explanation:

perimeter \\  = 8 + 8+8+8 \\  = 32 \:  \: in

area \\   1)3 \times 8 = 24 \\ 2)5 \times 5 = 25 \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = 49 {in}^{2}

hope this helps

brainliest appreciated

good luck! have a nice day!

6 0
3 years ago
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What is the first step in solving 5v+9=−51
diamong [38]

Answer:

subtract 9 then when u get the answer divide by 5

Step-by-step explanation:

6 0
3 years ago
Find the measure of y in the drawing.<br><br> 51°<br> 129°<br> 61°<br> 139°
snow_lady [41]

Answer:

B) y = 129º

Step-by-step explanation:

since a triangle is 180º in total, the you have to subtract 71 and 58 from 180 which will give you 51º which gives you the amount for x

and the line that the triangle is on is also 180º in total, so you subtract the 51 from 180 to give you a total of 129º which is the amount for y

4 0
3 years ago
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