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2 years ago

Three sevenths of a children's choir are boys. There are 12 boys in the choir.

Mathematics

2 answers:

erastova [34]2 years ago

3 0

This should basically explain things! Good luck!

GarryVolchara [31]2 years ago

3 0

The correct awnser is 28

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What is %0.4 of $100 equal ?

Lunna [17]

What is %0.4 of 100 equal? the answer is = 0.4

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3 years ago

Students can buy up to 10 books at the book fair the cost of the books as shown in the graph what is the range of the graph

bogdanovich [222]

The answer is 8 okay

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3 years ago

You have 6L feet of fence to make a rectangular vegetable garden alongside the wall of your house, where L is a positive constan

nika2105 [10]

Answer:

A(max) = (9/2)*L² ft²

Dimensions:

x = 3*L feet

y = (3/2)*L ft

Step-by-step explanation:

Let call "x" and " y " sides of the rectangle. The side x is parallel to the wall of the house then

Area of the rectangle is

A(r) = x*y

And total length of fence available is 6*L f , and we will use the wall as one x side then, perimeter of the rectangle which is 2x + 2y becomes x + 2*y

Then

6*L = x + 2* y ⇒ y = ( 6*L - x ) /2

And the area as function of x is

A(x) = x* ( 6*L - x )/2

A(x) = ( 6*L*x - x² ) /2

Taking derivatives on both sides of the equation we get:

A´(x) = 1/2 ( 6*L - 2*x )

A´(x) = 0 ⇒ 1/2( 6*L - 2*x ) = 0

6*L - 2*x = 0

-2*x = - 6*L

x = 3*L feet

And

y = ( 6*L - x ) /2 ⇒ y = ( 6*L - 3*L )/ 2

y = ( 3/2)*L feet

And area maximum is:

A(max) = 3*L * 3/2*L

A(max) = (9/2)*L² f²

4 0

3 years ago

Read 2 more answers

Find the common difference of the sequence shown 1/6,1/3,1/2,2/3,......

tekilochka [14]

Answer:

Common Difference(d) is

$d=\frac{1}{6}$

Step-by-step explanation:

Given sequence is :

$\frac{1}{6}, \frac{1}{3} ,\frac{1}{2} ,\frac{2}{3} .........$

If a sequence has a constant common difference throughout the sequence, then the sequence is called Arithmetic Progression.

Considering a sequence:

$a_1,a_2,a_3,a_4..........\\$

$a_2-a_1=a_3-a_2=a_4-a_3=a_n-a_n_-_1=d$

where 'd' is the common difference of the A.P.

Similarly, finding the common difference of the given sequence.

$\frac{1}{3} -\frac{1}{6}= \frac{1}{2}- \frac{1}{3}=\frac{2}{3} - \frac{1}{2}=d\\$

$d=\frac{1}{3}-\frac{1}{6}=\frac{(2)(1)-(1)(1)}{6}=\frac{1}{6}$

$d=\frac{1}{6}$

Common Difference(d) is

$d=\frac{1}{6}$

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3 years ago

Read 2 more answers

Does anyone else like online.... oooor is just me

erma4kov [3.2K]

Online what? if you mean online school yeah i kinda like it better

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2 years ago