3 years ago

Which of the following constants can be added to x^2-3x to form a perfect trinomial?

1 answer:

4 0

We want to make x^2-3x into a perfect square trinomial. An example of such a trinomial is x^2 + 6x + 9, which is equivalent to the square of (x+3).

From x^2-3x we see that the coefficient of x is -3. Divide this coefficient, -3, by 2, obtaining -3/2. Now square this result: square -3/2. Result: 9/4.

Adding 9/4 to x^2-3x makes x^2-3x into a perfect square trinomial.

You might be interested in

Minimum point of the quadratic x^2+6x-2

WITCHER [35]

Answer:

(-3,-11)

Step-by-step explanation:

Compare the given quadratic equation with the general quadratic equation.

a=1, b=6 and c=-2

$x=-\dfrac{(6)}{2(1)}\\=-3$

Subsitute $-3$ for $x$ in given quadratic equation.

$y=(-3)^2+6(-3)-2\\=9-18-2\\=-11$

The minimum point is (-3,-11).

3 0

3 years ago

Three friends ate dinner at a restaurant. The friends decided to add a 15% tip and then split the bill evenly. Each friend paid

Hunter-Best [27]

Well the all paid 10.35×3=31.05 with the tip. The tip is 35.05/100×15=4.6575. To know how much they paid without the tip you just 31.05-4.6575=26.39

6 0

4 years ago

Solve for r <br>v=1/3*pie*r^3

Ilia_Sergeevich [38]

It's the formula of the volume of a cone with equal lengths of radius and height.

$\dfrac{1}{3}\pi r^3=V\ \ \ \ |\cdot3\\\\\pi r^3=3V\ \ \ \ |:\pi\\\\r^3=\dfrac{3V}{\pi}\to r=\sqrt[3]{\dfrac{3V}{\pi}}$

5 0

4 years ago

A complex shape with measurements 3 feet, 11 feet, 3 feet, 4 feet, 6 feet, 3 feet, 6 feet, 4 feet. What is the perimeter of the

Anna71 [15]

Answer:

Solution given:

perimeter=sum of all side =3 feet+ 11 feet+ 3 feet+ 4 feet+ 6 feet+ 3 feet+ 6 feet+4 feet

=40feet

is your answer

6 0

3 years ago

Which equation gives the rule of this table

zhenek [66]

Answer:

Step-by-step explanation:

mark me as brainliest

6 0

3 years ago

Read 2 more answers