Khan academy unit test!

a circle with radius 3 has a sector with a central angle of 9/17 π radians .

what is the area of the sector?

As=0.13

Step-by-step explanation:

If we have central angle we use this rule to find area of sector :

C is central angle. r is radius.

Evaluate :

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.