Question

1. Which of the following mathematical statements is a quadratic inequality?
a. 5t? - t-20 = 0
b. m² +9m + 16 = 0
C. 4x2 + 2x-220
d. 9h + 18<0
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Answer 1

Step-by-step explanation:

b. m² +9m + 16 = 0 is the answer

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Answer 2

Given,

Which of the following mathematical statements is a quadratic inequality?

a. 5t² - t-20 = 0

b. m² +9m + 16 = 0

C. 4x² + 2x-220=0

d. 9h + 18<0

Solution,

Know that a quadratic inequality is an equation of second degree that uses an inequality sign instead of an equal sign.

Here, observe that all the options carry an equal sign except option (d).

Hence, the correct option is (d) i.e.$\[9h + 18 < 0.\]$