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2 years ago

Who factored 12x^7 correctly?

Mathematics

1 answer:

tiny-mole [99]2 years ago

6 0

Answer:

None

Step-by-step explanation:

None of them factored it correctly because this expression can not be factored with rational numbers. The polynomial is not factorable with rational numbers.

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There are 3 feet in 1 yard. This is equivalent to 12 feet in 4 yards. Which proportion can be used to represent this? StartFract

malfutka [58]

Answer:

$\dfrac{3}{1}=\dfrac{12}{4}$

Step-by-step explanation:

If you write the proportion as ratios of feet to yards, you have ...

$\dfrac{3\,\text{ft}}{1\,\text{yd}}=\dfrac{12\,\text{ft}}{4\,\text{yd}}\\\\\boxed{\dfrac{3}{1}=\dfrac{12}{4}}\qquad\text{without the units}$

Please note that a proportion is a true statement. Here, you need only pick the true statement from those offered. For example, here's the first choice written in more readable form:

$\dfrac{12}{1}=\dfrac{4}{12}\qquad\text{FALSE statement}$

7 0

2 years ago

Read 2 more answers

In △ABC, CM is the median to AB and side BC is 12 cm long. There is a point P∈ CM and a line AP intersecting BC at point Q. Find

Licemer1 [7]

Answer:

4 cm

Step-by-step explanation:

Draw the line MD that is parallel to AQ. Consider triangles BMD and BAQ. These triangles are similar, because they have three pairs of congruent angles (angles BMD and BAQ are corresponding, angles BDM and BQA are corresponding and angle B is common). The coefficient of similarity is $\dfrac{1}{2},$ because point M is midpoint of AB. Then

$\dfrac{BD}{BQ}=\dfrac{1}{2}\Rightarrow BQ=2BD.$

Since $BQ=BD+DQ,$ then $DQ=2BD-BD=BD.$

Consider triangles CPQ and CMD. These triangles are similar, because they have three pairs of congruent angles (angles CPQ and CMD are corresponding, angles CQP and CDM are corresponding and angle C is common). The coefficient of similarity is $\dfrac{1}{2},$ because point P is midpoint of CM. Then

$\dfrac{CQ}{CD}=\dfrac{1}{2}\Rightarrow CD=2CQ.$

Since $CD=CQ+DQ,$ then $DQ=2CQ-CQ=CQ.$

Hence you get $CQ=DQ=BD=\dfrac{BC}{3}=\dfrac{12}{3}=4\ cm.$

4 0

2 years ago

If there are 4 quarters in one dollar, how many quarters are in five dollars

Kazeer [188]

Answer:

lol. There are 20 quarters in 5 dollars.

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Instructions: Given the vertex of a quadratic function, find the axis

allsm [11]

The axis of symmetry is x = 5.

In first place, every quadratic function can be expressed as follows:

f(x) = a*x² + b*x + c

where a, b and c are real numbers and a ≠ 0. This way of writing the quadratic function is called polynomial.

The graph of a quadratic function is a parabola. Every parabola is a symmetric curve with respect to a horizontal line called the axis of symmetry. That is, the axis of symmetry is an imaginary line that passes through the middle of the parabola and divides it into two halves that are mirror images of each other.

The point of intersection of the axis of symmetry with the parabola is called the vertex, and it divides the parabola into two branches. That is, the axis of symmetry always passes through the vertex of the parabola. The x-coordinate of the vertex is the equation of the axis of symmetry of the parabola.

Then, being the vertex of the quadratic function (5,7), where the vertex on the x-axis has a value of 5 and on the y-axis a value of 7, the axis of symmetry is x = 5.

5 0

2 years ago

Why do you thing rates are usually written as unit rates

tatyana61 [14]

Rates are usually written in unit because it shows you the amount of something per one of the thing it is being compared to (EX: 5 oz/ 1 pig)

3 0

2 years ago