All categories

3 years ago

What is 2/5÷4 i need help on my khann

Mathematics

2 answers:

vekshin13 years ago

7 0

Answer:

1/10 0r 0.1

Step-by-step explanation:

vredina [299]3 years ago

5 0

Answer:

1/10 or .1

Step-by-step explanation:

You might be interested in

A company had three divisions with equal number of members. In the beginning of the year the company had a fund of $1200. In add

atroni [7]

Answer:

3 members

Step-by-step explanation:

1,200/316 = 3.79746835 = 3 people

3 0

2 years ago

Read 2 more answers

The top and bottom margins of a poster are each 12 cm and the side margins are each 8 cm. The area of printed material on the po

grin007 [14]

Answer:

Dimensions of printed poster are

length is 32 cm

width is 48 cm

Step-by-step explanation:

Let's assume

length of printed poster is x cm

width of printed poster is y cm

now, we can find area of printed poster

so, area of printed poster is

$=xy$

we are given that area as 1536

so, we can set it to 1536

$xy=1536$

now, we can solve for y

$y=\frac{1536}{x}$

now, we are given

The top and bottom margins of a poster are each 12 cm and the side margins are each 8 cm

so, total area of poster is

$A=(8+x+8)\times (12+y+12)$

$A=(x+16)\times (y+24)$

now, we can plug back y

$A=(x+16)\times (\frac{1536}{x}+24)$

now, we have to minimize A

so, we will find derivative

$A'=\frac{d}{dx}\left(\left(x+16\right)\left(\frac{1536}{x}+24\right)\right)$

we can use product rule

$A'=\frac{d}{dx}\left(x+16\right)\left(\frac{1536}{x}+24\right)+\frac{d}{dx}\left(\frac{1536}{x}+24\right)\left(x+16\right)$

$=\frac{d}{dx}\left(x+16\right)\left(\frac{1536}{x}+24\right)+\frac{d}{dx}\left(\frac{1536}{x}+24\right)\left(x+16\right)$

now, we can simplify it

$A'=-\frac{24576}{x^2}+24$

now, we can set it to 0

and then we can solve for x

$A'=-\frac{24576}{x^2}+24=0$

$-\frac{24576}{x^2}x^2+24x^2=0\cdot \:x^2$

$-24576+24x^2=0$

$x=32,\:x=-32$

Since, x is dimension

and dimension can never be negative

so, we will only consider positive value

$x=32$

now, we can solve for y

$y=\frac{1536}{32}$

$y=48$

so, dimensions of printed poster are

length is 32 cm

width is 48 cm

5 0

2 years ago

For F(x)=2x+1 and G(x)=c^2-7 find (FxG)(x)

Ludmilka [50]

The value of F(G(x)) is 2x^2 - 13

<h3>How to solve the composite functions?</h3>

The functions are given as:

F(x)=2x+1

G(x)=x^2-7

To find (FxG)(x), we make use of

(FxG)(x) = F(G(x))

So, we have:

F(G(x))=2G(x)+1

Substitute G(x)=x^2-7

F(G(x))=2(x^2-7)+1

Expand

F(G(x))=2x^2 - 14 + 1

Evaluate the like terms

F(G(x))=2x^2 - 13

Hence, the value of F(G(x)) is 2x^2 - 13

Read more about composite functions at:

brainly.com/question/20379727

#SPJ1

4 0

1 year ago

1. 86 Is 45% of what number? A. 86=0.45n B. n=0.45x86 C.0.45=n x 86 D. 86=45n

svetlana [45]

1.A: 86 is equal to (86=) 45 % (which is 0.45) of a number n so 86=0.45n

2. C 4 is npercent of 26, so 4=n*26 where n is a number in percent, with the percent sign!

7 0

2 years ago

The graph of f(x)=4x^3-13x+9x+2 is shown below.

Alika [10]

Answer: 3

Step-by-step explanation:

5 0

2 years ago