Write in expanded form 3.124

Mathematics

2 answers:

Mamont248 [21]3 years ago

4 0

3.124
3 + 0.100+ 0.020 + 0.004

pishuonlain [190]3 years ago

4 0

Number form:- 3.124

Expanded form:- 3 + .1 + .02 + .004

<span>3 + .1 + .02 + .004 = 3.124
</span>
3.124 in expanded form is <span>3 + .1 + .02 + .004.</span>

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Which represents a quadratic function ?

mars1129 [50]

Answer:

$\boxed{\boxed{B.\ f(x)=\dfrac{3}{4}x^2+2x-5}}$

Step-by-step explanation:

Quadratic function-

It is a function that can be represented by an equation of the form $f = ax^2 + bx + c$ , where $a\neq 0$

In a quadratic function, the greatest power of the variable is 2.

As in the first option the highest power is 3, so it is not a quadratic function.

Even though the power of x is 2 in the third option, but as it is in the denominator, so the overall power of x becomes -2. Hence it is not a quadratic function.

As the coefficient of $x^2$ is 0 in case of fourth option, so it is not a quadratic function.