Home
Class 12
MATHS
What is the sum of 0.1 x^(2) + 3x + 80 a...

What is the sum of `0.1 x^(2) + 3x + 80 and 0.5x^(2) - 2x + 60` for all x?

A

`-0.4x^(2) + 5x + 20`

B

`0.6x^(2) + x + 140`

C

`0.6x^(2) + 5x + 140`

D

`x^(2) + 5x + 140`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PRACTICE TEST 3 - MATHEMATICS TEST

    ENGLISH SAT|Exercise EXERCISE|56 Videos

  • PRACTICE TEST 5 - MATHEMATICS TEST

    ENGLISH SAT|Exercise EXERCISE|60 Videos

Similar Questions

Explore conceptually related problems

Evaluate lim_(x to 0) [(3x^(2) + 4x + 5)/(x^(2) - 2x + 3)]

What is the sum of the solutions of (6x +5) ^(2) - (3x -2)^(2) =0 ?

If A, B, C, D are the sum of the square of the roots of 2x^(2) + x- 3=0, x^(2)-x+2= 0, 3x^(2) - 2x +1=0, x^(2)- x+1=0 then the ascending order of A, B, C, D is

Find the roots of the following quadratic equations i) 6sqrt5 x^(2) – 9x -3sqrt5 = 0 ii) x^(2) - x - 12 = 0 iii) 2x^(2) - 6x + 7 = 0 iv) 4x^(2) - 4x+17 = 3x^(2) -10x-17 v) x^(2) + 6x + 34 = 0 vi) 3x^(2) + 2x - 5 = 0

Add 2x^2-3x+1 to the sum of 3x^2-2x and 3x+7.

Solve the follwing inequations by algebric and graphical methods. i) x^(2) – 8x + 15 gt 0 ii) 2x^(2) + 3x – 2 lt 0 iii) x^(2) - 4x + 5 gt 0 iv) 15x^(2) + 4x – 5 le 0

If x = 3, what is the sum of 2x(2x+1), (2x+2),(2x+3), and (2x+4) ?

If roots of equation 2x^(4) - 3x^(3) + 2x^2 - 7x -1 = 0 are alpha, beta, gamma and 5 then value of sum(alpha+1)/alpha is equal to:

If 3x^(2) -17x+10 =0 and x^(2)-5x+m =0 has a common root, then sum of all possible real values of 'm' is:

Let the sum of all x in the interval [0, 2pi] such that 3 cot^(2) x+8 cot x+3=0 .

ENGLISH SAT-PRACTICE TEST 4 - MATHEMATICS TEST-EXERCISE
  1. A formula for the volume of a right circular cone is V = 1/3 pi r^(2) ...

    Text Solution

    |

  2. In /\ACD below, B is on bar(AC), E is on bar(AD), the measure of /CAD ...

    Text Solution

    |

  3. What is the sum of 0.1 x^(2) + 3x + 80 and 0.5x^(2) - 2x + 60 for all ...

    Text Solution

    |

  4. Student studying motion observed a cart rolling at a constant rate alo...

    Text Solution

    |

  5. Dimitry bought a pair of pants at the discounted price of $30. The ori...

    Text Solution

    |

  6. What is the value of |-6|-|7-41|?

    Text Solution

    |

  7. Samantha, Nyla, and Jerry own shares of stock in the Triumph Hotels co...

    Text Solution

    |

  8. A new club wants to attract customers who are at least 18 but less tha...

    Text Solution

    |

  9. In the figure shown below, E and G lie on bar(AC), D and F lie on bar(...

    Text Solution

    |

  10. Which of the following integers is closest to (sqrt50)/(2)?

    Text Solution

    |

  11. The ratio of Jane's age to her daughter's age is 9:2. The sum of their...

    Text Solution

    |

  12. For the next school year, a college will use 1/9 of the money in its ...

    Text Solution

    |

  13. What value of x makes the proportion below true? (10)/(10+x) = 35/42

    Text Solution

    |

  14. The rectangle shown in the figure below is partitioned into 3 triangle...

    Text Solution

    |

  15. Which of the following ordered pairs in the standard (x,y) coordinate ...

    Text Solution

    |

  16. The graph of y = 3 - 5 sin (x - pi) is shown in the standard (x,y) coo...

    Text Solution

    |

  17. Given functions f(x) = 2x + 1 and g(x) = x^(2) - 4, what is the value ...

    Text Solution

    |

  18. A fabric store sells flannel and calico fabrics. Joan pays $25 for 3 y...

    Text Solution

    |

  19. The scores given below were earned by 10 students on a recent biologic...

    Text Solution

    |

  20. A parallelogram has a perimeter of 84 inches, and 1 of its sides measu...

    Text Solution

    |