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3 years ago

Is the fraction 13/8 a rational number

Mathematics

1 answer:

Talja [164]3 years ago

4 0

Yes. Any number that can be written as a fraction is defined as rational.

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M=7n make n the subject

Olin [163]

We divide both sides by 7 which makes n alone. Which is n=m/7.

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3 years ago

-4 + 4d + 17 = 33<br> D = ?

cricket20 [7]

Answer:

Step-by-step explanation:

I think it is 3, because...

33 - 17 = 16

16 - 4 = 12

12/4 = 3

???

7 0

2 years ago

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

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

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

6 0

4 years ago

What kind of exponent does this graph have? Help pls ?

otez555 [7]

It’s 42 but Carrier the 2

4 0

3 years ago

the area of rectangle a is 11/12 square meters. the area of rectangle b is 8/12 square meters. how much larger is rectangle a?

tresset_1 [31]

11 / 12 - 8 / 12 = 3 / 12 = 1/4 square meters;

5 0

3 years ago