Irene0718id
Answered

1. What are the sum (s) and product (p) of the roots the equation x²+3x-27 =0.
A. s = 3, p = 27 B. s = -27, p = 2 C. s = -3, p = -27 D. s = -27, p = -3

2. What is the product of the roots of the equation -8x² + 3x + 2=0?
A. - 1/4 B. 2 C. 3/16 D. - 2

3. Which of the following mathematical statements is a quadratic inequality?
A. 5n² - 3n - 25 =0
B. 9h + 27 2(x - 3)
D. x² - x - 4 ≤ 0

5. Which of the following mathematical sentences has an inequality symbol " greater than or equal to"?
A. x² - 9x + 18 2(x - 3)
B. 7x² + 29x - 30 ≥ 0
C. 2x² < 21 - 9x
D. x² - x - 4 ≤ 0

Sagot :

Nyle07id

1. C

  • The formula for the sum of the roots is -b/a and the formula for the product of the roots is c/a.

2. A

  • The formula for the product of the roots is c/a.

3. D

  • The quadratic expression tells us that it is less than or equal to zero. Wherein ≤ is one of the symbols of inequality.

5. B.

  • This symbol < is read as less than.
  • This symbol ≤ is read as less than or equal to.
  • This symbol > is read as greater than.
  • This symbol ≥ is read as greater than or equal to.

- I hope this can help you somehow. :)