Joe purchases a truck for $48,613. He expects the useful
life of the truck to be 14 years, at which time its value will have depreciated
to $12,665. The annual depreciation rater in decimal form) is given by the formula
r=1-(
where is the useful fose of the item (in years). Sis the salvage value in dollars), and is the original cost in dollars). What annual depreciation rate did the dealership use (express
the answer in decimal form rounded to the nearest 100th)?

i can you with this sweetie!

step-by-step explanation:

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204