Explain how we do decimals plus Fractions

2 answers:

6 0

You can convert the fractions into a decimal, or a decimal into a fraction. I find that fractions into decimals is easier because with fractions you have the added step of making sure the two numbers have the same denominator.

Also, if you type in the numerator of the fraction divided by the denominator into a calculator, it will automatically give you the decimal. It is a lot harder to convert decimal into fractions if your calculator doesn’t do it.

Oliga [24]3 years ago

4 0

Answer:

You have to either make the fraction a decimal, or you have the decimal a fraction. Also when making it into a fraction, you should have the same denominator.

Step-by-step explanation:

I hope this helped.

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omeli [17]

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8 0

3 years ago

Find an equation for the parabola with focus at (-5,-4) and vertex at (-5,-3)

sattari [20]

Answer:

$(x+5)^{2}=-4(y+3)$

Step-by-step explanation:

Given:

Focus point = (-5, -4)

Vertex point = (-5, -3)

We need to find the equation for the parabola.

Solution:

Since the x-coordinates of the vertex and focus are the same,

so this is a regular vertical parabola, where the x part is squared. Since the vertex is above the focus, this is a right-side down parabola and p is negative.

The vertex of this parabola is at (h, k) and the focus is at (h, k + p). So, directrix is y = k - p.

Substitute y = -4 and k = -3.

$-4 = -3+p$