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mrs_skeptik [129]
4 years ago
11

(-10x^2+9)+(8x^2-5x+7) (−10x 2 +9)+(8x 2 −5x+7)

Mathematics
1 answer:
zavuch27 [327]4 years ago
7 0

Answer:

-2x^2-5x+16

Step-by-step explanation:

-10x^2-8x^2-5x+9+7=-2x^2-5x+16

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Work out the size of angle x.<br>42°<br>Х<br>123°<br>​
Umnica [9.8K]

Answer:

42+123+x=180

x=180-165

x=15 degrees

Step-by-step explanation:

7 0
3 years ago
The number m and 58 are additive inverses. Drag and drop 58 and m to their correct positions on the number line.
Elodia [21]
The additive inverse is a number, when added to another number, yields 0.
Its basically the opposite number.....same number, different sign.

so if the number m and 58 are additive inverses, then m = -58 <==

because -58 + 58 = 0
8 0
3 years ago
kimmys savings account has a balance of $76.23 in june.by september, her balance is 5 times as much as her june balance.between
nalin [4]
From the information you have given me, I would say Kimmy has $<span>468.98 </span>dollars in her bank account.

Does she get more money during the other months, just as she had gotten 5 times as much as she had in a 3 month span? (From june to september.) All I could tell was her money was multiplied by 5, then you add $87.83 more into her account.

Please check my math if you want to be sure.
$76.23 * 5 = $381.15
$381.15 + 87.83 = 468.98
4 0
3 years ago
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kari74 [83]

Answer:

Up 3 over 1

Step-by-step explanation:

4 0
3 years ago
For which of the following inequalities is x ≥ 4 a solution
EastWind [94]
C. Add 3 to both sides to get x is greater than or equal to 4.
5 0
3 years ago
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