3 years ago

Is 11/4 rational or irrational

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

7 0

Answer:

rational

Step-by-step explanation:

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The arch of a bridge forms the upper half of an ellipse. The arch is 6 meters above the 20-meter-wide river. Write an equation f

aksik [14]

Answer:

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

Step-by-step explanation:

Required

The equation of the ellipse

This is calculated as:

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

Where:

$b =6$ ---- height

$a = 0.5 * 20 =10$ --- width

So:

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

$\frac{x^2}{6^2} + \frac{y^2}{10^2} = 1$

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

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2 years ago

There are 624 students at Lincoln Middle School.

pochemuha

22% are right handed

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3 years ago

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Write an equation if the line that passes through (-6,0) and (0,-24)

Irina-Kira [14]

Y=-4x - 24

I hope this helps you :)

4 0

2 years ago

IS THIS THE ANSWER????

andreyandreev [35.5K]

This answer is correct. The absolute value of a number is its distance from 0, and we are looking for an absolute value of 1. Both -1 and 1 are 1 whole number away from 0.

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2 years ago

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In triangle ABC, D is the midpoint of side AC and E is the midpoint of side BC.

cestrela7 [59]

Answer:

Step-by-step explanation:

Since all sides are half of greater triangle.Then 7 × 2 = 14 is length of greater hypotenuse.

Suppose two triangles with similar conditions

1^2+1^2=2

Hypotenuse=2^1/2

We assume another triangle which is exactly double of previous triangle I.e

2^2+2^2=8

Hypotenuse=2×2^1/2

Which is exactly twice of previous triangle.

Hence proved hyootenuse is double of smaller triangle I.e 14

8 0

3 years ago