OK, no figure, but from the comment is sounds like the grey area is the big circle minus the small circle.
The diameter of the small circle is 2 so its radius is 1 and its area πr² is π.
The radius of the larger circle is 4, so area 16π
The shaded area is 16π - π
Answer: 15π
Answer: x=40
Step-by-step explanation:
(4x+40)=3x
Step 1: open the bracket
4x + 40 = 3x
Step 2: Combine like terms
4x - 3x = 40
x = 40
I hope this helps.
Answer: 7.5 dollars. Also known as 7.50
Step-by-step explanation: 1 roll is 5 dollars. You have 1 and a half rolls. So five, plus 2.5 (five divided into half). 7.5 dollars.
1. f(-6)=12
2. k(-4)=-68
Further explanation:
We have two functions whose values we have to find on certain points.
In order to find the values of function, the value is put in place of variable in the function.
So,
<u>1. f(a) = -2a</u>
We have to find, f(-6)
So putting -6 in function

<u>2. k(x) = -3x^2+5x</u>
We have to find, k(-4)
So putting -4 in function

Keywords: Functions, values of functions
Learn more about functions at:
#LearnwithBrainly
Answer:
x = 70.53 degrees
Step-by-step explanation:
equation:
cos-1 = 
⇒ cos-1 x = 
⇒ cos-1 x = 0.33
⇒ x = 70.528
round to the nearest tenth:
⇒ 70.53