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3 years ago

Find the circumference of a circle with diameter,

Mathematics

1 answer:

goblinko [34]3 years ago

7 0

Answer:

Step-by-step explanation:

radius(r)=diameter/2

=10.4/2

=5.2 cm

circumference of a circle =2πr

=2*3.14*5.2

=32.656

=32.7

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PLS HELP ASAP I WILL GIVE BRAINERLIST PLUS 10 POINTS

Tresset [83]

It’s the 3rd answer choice

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3 years ago

Convert the equation r = 12 sin theta to Cartesian coordinates. Describe the resulting curve.

VLD [36.1K]

Answer:

Step-by-step explanation:

Given that there is a polar equation as

$r=12 sin \theta$

This has to be converted into cartesian.

We know the conversion is

$r^2 =x^2+y^2 \\tan \theta = \frac{y}{x}$

Using this we can say that

$sin^2 \theta = 1-cos^2 \theta \\= 1-\frac{1}{sec^2 \theta} \\=1-\frac{1}{1+tan^2 \theta} \\=1-\frac{1}{1+\frac{y^2}{x^2} } \\=1-\frac{x^2}{x^2+y^2} \\=\frac{y^2}{y^2+y^2}$

$\sqrt{x^2+y^2} =12(\frac{y}{\sqrt{x^2+y^2} } \\x^2+y^2 =12y\\x^2+y^2-12y+36 = 36\\x^2+(y-6)^2 = 6^2$ }

Circle with centre (0,6) and radius 6.

7 0

3 years ago

Find x.<br><br> special 17<br><br> A. 22<br> B. 113√2<br> C. 116√2<br> D. 33

vladimir1956 [14]

The value of x in the triangle is (a) 22

<h3>How to solve for x?</h3>

The complete question is in the attached image.

From the attached image of the triangle, we have:

$\sin(45) = \frac{x}{22\sqrt 2}$

Evaluate sin(45)

$\frac{1}{\sqrt 2} = \frac{x}{22\sqrt 2}$

Solve for x

$x = \frac{22\sqrt 2}{\sqrt 2}$

Divide

x = 22

Hence, the value of x is (a) 22

Read more about special triangles at:

brainly.com/question/654982

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2 years ago

Jina and her husband are each starting a saving plan. Jina will initially set aside $650 and then add $135 every month to the sa

Basile [38]

Step-by-step explanation:

If A=650+135N; and B=585N,

then A+B= 650+135N+585N=650+620N

T=720N+650

4 0

3 years ago

5. If the number of employees is represented by x, which function represents the

Ganezh [65]

Consider the missing lines of question are "Due to the Enhanced Community Quarantine, Grand Royal Spa temporarily stopped its operation and to help the employees, the owner decided to split evenly its total revenue of 65,000.00".

Given:

Total revenue = 65000

Number of employees = x

To find:

The function which represents the amount each received.

Solution:

We know that,

$\text{Amount each received}=\dfrac{\text{Total revenue}}{\text{Number of employees}}$

Substitute the given values in the above formula.

$\text{Amount each received}=\dfrac{65000}{x}$

So, the function which represents the amount each received is

$f(x)=\dfrac{65000}{x}$

Therefore, the required function is $f(x)=\dfrac{65000}{x}$ .

Note: Given options are not correct and option C is incomplete.

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3 years ago