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3 years ago

The diagram shows a circle inside a square. work out the area of the circle

Mathematics

1 answer:

Alona [7]3 years ago

7 0

Answer:

i don't know the answer as you haven't given the diagram

Step-by-step explanation:

asumming the circle is touching the square the length of the sides of the square is the diameter of the circle using this information you use the formula area= pie*radius squared find the area.

(radius=half the diameter0

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Let f(x)=16x^2-x. Find f(x+1)-f(x)

olasank [31]

f(x+1) = 16(x+1)² - (x+1) = 16(x²+2x+1) - x - 1

= 16x² + 32x + 16 - x - 1 = 16x²+31x+15

f(x+1)-f(x) = 16x²+31x+15 - (16x² - x)

= 16x²+31x+15 - 16x² + x

= 32x + 15

8 0

3 years ago

Write an expression so that the product of a whole number and a decimal is.0.28

Butoxors [25]

Let

x-------> the whole number

y------> the decimal number

we know that

$x*y=0.28$ ------> equation 1

assume the value of x and then calculate the value of y

Let

x=280

solve for y in the equation 1

$y= \frac{0.28}{x}$

substitute the value of x

$y= \frac{0.28}{280}$

$y=0.001$

therefore

<u>the expression is equal to</u>

280*0.001=0.28

5 0

4 years ago

What is 6 plus 6??????..

koban [17]

Answer: 6 plus 6 is 94

Step-by-step explanation:

For example |||||||||||||||||||||||||||||||||||||||||||||| + ||||||||||||||||||||||||||||||||||||||||||||||| = 94

5 0

3 years ago

Read 2 more answers

What is the quotient 4-x/x^2+5x-6 divided by x^2-11x+28/x^2+7x+6 in simplified form?

sashaice [31]

$\dfrac{4-x}{x^2+5x-6}:\dfrac{x^2-11x+28}{x^2+7x+6}=(*)$

$4-x=-(x-4)\\\\x^2+5x-6=x^2+6x-x-6=x(x+6)-1(x+6)=(x+6)(x-1)\\\\x^2-11x+28=x^2-7x-4x+28=x(x-7)-4(x-7)\\=(x-7)(x-4)\\\\x^2+7x+6=x^2+6x+x+6=x(x+6)+1(x+6)=(x+6)(x+1)\\\\(*)=\dfrac{-(x-4)}{(x+6)(x-1)}:\dfrac{(x-7)(x-4)}{(x+6)(x+1)}$
$=\dfrac{-(x-4)}{(x+6)(x-1)}\cdot\dfrac{(x+6)(x+1)}{(x-7)(x-4)}=\dfrac{-1}{x-1}\cdot\dfrac{x+1}{x-7}\\\\=-\dfrac{x+1}{x^2-7x-x+7}=-\dfrac{x+1}{x^2-8x+7}$

7 0

3 years ago

I need help plz and explination its confusing

Mamont248 [21]

Answer:

12.56

Step-by-step explanation:

The formula for circumference is either πr² πd. Thats basically just multiplying. All you have to do is take the the diameter and multiply it times pi and you get the answer. In some cases they want you to use the radius; radius is diameter divided by 2. Example is if 4 is the diameter 2 is the radius. For this one i did 4 times 3.14(pi).

I hope that helps!

3 0

3 years ago