Find diameter and radius if c = 43m

d ≈ 135.1 m

Step-by-step explanation:

The circumference formula is:

In order to solve this, just substitute 43 cm into C, to get:

Divide 43 by 2 times pi to find the radius:

Then in order to find the diameter, double the number of the radius:

×

d ≈ 135.1 m

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: