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IgorLugansk [536]
3 years ago
5

Please help ASAP for 10 points!!

Mathematics
1 answer:
Orlov [11]3 years ago
5 0

Answer:

(C) - 3x²+6

Step-by-step explanation:

(2x²+3x-4) +(8-3x) +(-5x²+2)= 2x²<em>+3x</em><u>-4 +8</u><em>-3x</em>-5x²<u>+2 </u>= - 3x²+6

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11.MARTIAN FINDS A SHIRT ON SLAE FOR 10% OFF AT A DEPARTMENT STORE. THE ORIGINAL PRICE WAS $20.Martain must also pay 8.5% sales
Snowcat [4.5K]
A. Find 10% of $20, which is $2. Then subtract the sale 20-2, which is $18
B. Since you know the price without taxes is $18, you have to multiply 8.5% of 18, which is $1.53. $18.00 + $1.53= $19.53

So the answer is $19.53


Hope this helped
5 0
3 years ago
Antoine is making a banner in the shape of a triangle . He wants to add a decorative border around the edges. How long will the
LekaFEV [45]

The border will have to be 33b - 8

Step-by-step explanation:

Antoine is making a banner in the shape of a triangle

  • He wants to add a decorative border around the edges
  • The length of the three sides of the triangle are 9b + 8, 12b - 8 and 12b - 8

We need to find the length of the border

The length of the border is the sum of the lengths of the three sides of the triangle

∵ The length of one side = 9b + 8

∵ The length of another side = 12b - 8

∵ The length of the final side = 12b - 8

- Add the lengths of the 3 sides to find the length of the border

∴ The length of the border = 9b + 8 + 12b - 8 + 12b - 8

- Add like terms

∴ The length of the border = (9b + 12b + 12b) + (8 - 8 - 8)

∴ The length of the border = 33b - 8

The border will have to be 33b - 8

Learn more:

You can learn more about the word problems in brainly.com/question/10557938

#LearnwithBrainly

4 0
4 years ago
Please just answer don’t ask
frozen [14]

Answer:

20

The strawberry is 3, The watermelon is 3, The peach is 9, and the other one is 5

3+3+9+5=20

5 0
3 years ago
Read 2 more answers
An equation is shown.<br> 18+ 5(2x + 5) = 12<br> Solve the equation for x.
andriy [413]

Step-by-step explanation:

18+ 5(2x + 5) = 12

18 + 10x + 25 = 12

43 + 10x = 12

10x = 12 -43

10x = -31

x = -3.1

7 0
3 years ago
Multiply(4×10^4)(3.63×10^-4) in scientifc notation
soldier1979 [14.2K]
Rewrite 
(4)(3.63) * (10^4)(10^-4)
multiply
14.52 * (10^4)(10^-4)
multiplication of the coefficient is the addition of the exponent
so 4 -4 is 0 

14.52

Hope this helps :)
5 0
4 years ago
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