3 years ago

Is this a relation or function?

Mathematics

1 answer:

jeka943 years ago

8 0

I think this is a function..

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6 people share 4/5 pound of peanuts equally. What fraction of a pound of peanuts does each person receive?

Oxana [17]

(4/5) / 6 =
4/5 * 1/6 =
4/30 =
2/15....each person gets 2/15 lb of peanuts

3 0

3 years ago

The ellipse with x-intercepts (2, 0) and (-2, 0); y-intercepts (0, 4) and (0, -4).

masya89 [10]

Answer:

$\dfrac{x^2}{4}+\dfrac{y^2}{16}=1$

Step-by-step explanation:

If the ellipse has its x-intercepts at points (2, 0) and (-2, 0) and y-intercepts at points (0, 4) and (0, -4), then its symmetric across the y-axis and across the x-axis.

Moreover,

$a=2\\ \\b=4$

The equation of such ellipse is

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$

Hence, the equation of the ellipse is

$\dfrac{x^2}{2^2}+\dfrac{y^2}{4^2}=1\\ \\ \\\dfrac{x^2}{4}+\dfrac{y^2}{16}=1$

3 0

3 years ago

when asked to factor the x^2 - 100, a student gives the answer (x -10) (x-10). what is wrong with this answer?

aalyn [17]

$x^2-100\\\\=x^2-10^2\\\\=(x+10)(x-10)\\\\\text{The difference of two squares formula is}~ a^2 -b^2 =(a+b)(a-b),\\\\\text{So, the student did not apply it properly}$

3 0

2 years ago

Write 2/4 in lowest terms

ycow [4]

Answer:

1/2

Step-by-step explanation:

Divide it by 2 on both sides. 2/2 is 1. 4/2 is 2. So 1/2

7 0

3 years ago

A basketball hoop is 30% off the sticker price of $125.30. How much is the discount?

EleoNora [17]

37.59
Just multiple .3 x 125.30

6 0

3 years ago