Choose the expression that represents a quadratic expression.
2 answers:
Answer:
THE CORRECT OPTION IS " "
Step-by-step explanation:
The quadratic equation is defined as equation having degree 2.
The standard form of quadratic equation is :
.
where a, b, c are numbers and a cannot be equal to zero.
From the above statements we can say that " " is quadratic equations and rest options does not qualify the equations of quadratic equations.
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Answer: 2.5 or 2 1/2
Step-by-step explanation:
You can convert the mixed fractions to decimal numbers:
- Divide the numerator by the denominator of the fraction.
- Add the result to the whole number.
Thenyou have:
Barbara's time:
Donna's time:
Cindy's time:
Nicole's time:
As you can see, the fastest girl is Cindy and the slowest girl is Nicole.
Then, you must make the following subtraction to calculate the difference:
or 2 1/2