Colin meets three wooden boards to repair his porch. the length he needs are 2.2 meters,2.82 meters, and 4.25 meters. he purchases a board that is 10 meters long and cuts the three sections. how much of the board that colin purchased will be left.

0.73 meter board that Colin purchased will be left.

Step-by-step explanation:

Given : Colin meets three wooden boards to repair his porch.The length he needs are 2.2 meters,2.82 meters,and 4.25 meters.He purchases a board that is 10 meters long and cuts the three sections.

To find : how much of the board that Colin purchased will be left.

Solution : We have given

He needs  2.2 meters,2.82 meters,and 4.25 meters.

He purchased = 10 m long board.

Total board he needs = 2.2 + 2.82 + 4.25 = 9.27 meter.

Hence 9.27 meter board he need to use .

Board left =  10 - 9.27 = 0.73 meter.

Therefore, 0.73 meter board that Colin purchased will be left.

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).