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slava [35]
2 years ago
14

Please help

Mathematics
1 answer:
koban [17]2 years ago
5 0

Step-by-step explanation:

240.70×4=962.8 (for return)

569×4=2240 (hotel cost)

28×4=112 (return airport)

962.8+2240+112=3,314.8

it will cost $3,314.8 for a family of 4.

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Find a polynomial, which, when added to the polynomial 5x2–3x–9, is equivalent to: x2−5x+6
Bess [88]

The required polynomial is:-4x^2-2x+15

Step-by-step explanation:

Let P be the polynomial that has to be found

Given

One polynomial = 5x^2-3x-9

Sum of both polynomials = x^2-5x+6

So,

(5x^2-3x-9) + P = x^2-5x+6\\P = x^2-5x+6 - (5x^2-3x-9)\\P = x^2-5x+6-5x^2+3x+9\\P = x^2-5x^2-5x+3x+6+9\\P = -4x^2-2x+15

Hence,

The required polynomial is:-4x^2-2x+15

Keywords: Polynomials, expressions

Learn more about polynomials at:

  • brainly.com/question/1704778
  • brainly.com/question/1695461

#LearnwithBrainly

3 0
3 years ago
The test scores of students in a math class are 56, 42, 50, 63, 58, 41, 50, 48, 68, and 48. What is the mean of this set of data
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To find the mean, add up all the test scores and divide by the number of tests:
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8 0
4 years ago
HELP PLEASE! FIND THE SURFACE AREA OF PYRAMID
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136.73972

Step-by-step explanation:

A=lw+l(w

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2)2+92+5.2·(6

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6 0
2 years ago
Read 2 more answers
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Answer:

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2 years ago
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uygqdwty

Step-by-step explanation:

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sorry for the weird sign i amm typing with a fractered arm

8 0
2 years ago
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