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2 years ago

8

Is -6.55555 An irrational number?

1 answer:

Marysya12 [62]2 years ago

5 0

Any number you can write completely is a rational number. Any decimal number with a repeating decimal fraction is also a rational number.

If the number of digits goes on forever without repeating, it is an irrational number.

Of the numbers listed, √3 and π are irrational. The remaining numbers are rational. ("The symbol π" is not a number; it is a symbol. It conventionally stands for an irrational number.)

_____

Is -6.55555 An irrational number? NO

Is -2 an irrational number? NO

Is 4/9 an irrational number? NO

Is the square root of 3 an irrational number? YES

Is the pi symbol irrational number? NO (it stands for an irrational number. You have asked about the symbol, not about pi. Pi is an irrational number.)

Is 3.14 an irrational number? NO

Is 23 an irrational number? NO

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algol13

The least common denominator of 11/8 and 1/12 is 24. Since 24 is divisible by 12, as well as the number 8. Wherein, each answers will result to a whole number. Being, 24/8 is equal to 3 and 24/12 is equal to 2.

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2 years ago

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Step-by-step explanation:

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3 years ago

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2 years ago

Read 2 more answers

A rope of length 18 feet is arranged in the shape of a sector of a circle with central angle O radians, as shown in the

creativ13 [48]

Answer:

$A(\theta)=\frac{162 \theta}{(\theta+2)^2}$

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Let

r ---> the radius of the sector

s ---> the arc length of sector

Find the radius r

we know that

$2r+s=18$

$s=r \theta$

$2r+r \theta=18$

solve for r

$r=\frac{18}{2+\theta}$

step 2

Find the value of s

$s=r \theta$

substitute the value of r

$s=\frac{18}{2+\theta}\theta$

step 3

we know that

The area of complete circle is equal to

$A=\pi r^{2}$

The complete circle subtends a central angle of 2π radians

so

using proportion find the area of the sector by a central angle of angle theta

Let

A ---> the area of sector with central angle theta

$\frac{\pi r^{2} }{2\pi}=\frac{A}{\theta} \\\\A=\frac{r^2\theta}{2}$

substitute the value of r

$A=\frac{(\frac{18}{2+\theta})^2\theta}{2}$

$A=\frac{162 \theta}{(\theta+2)^2}$

Convert to function notation

$A(\theta)=\frac{162 \theta}{(\theta+2)^2}$

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3 years ago

Surface area of a prism please help its my last day 120 points

elena-s [515]

Answer:

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Height of the prism = 8 yd

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2 years ago