The measurement of the circumference of a circle is found to be 68 centimeters, with a possible error of 0.9 centimeter. (a) approximate the percent error in computing the area of the circle. (round your answer to two decimal places

2.65%

Step-by-step explanation:

Given : The  measurement of the circumference of a circle =  68 centimeters

Possible error : centimeter.

The formula to find the circumference :-

Differentiate the formula of circumference w.r.t. r , we get

The area of a circle  :-

Differentiate both sides w.r.t r, we get

The percent error in computing the area of the circle is given by :-

i need the options

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!