You are planning a trip to Yellowstone National Park, and know that you can save money by driving and staying with family along the way. The first leg of your journey will be 426 miles from Portland, OR to Boise, ID where your aunt lives. After visiting with her, you will drive 388 more miles to Yellowstone. Estimate the number of miles you will drive to get to Yellowstone National Park by first rounding to the tens place.

cant open file sorry!

step-by-step explanation:

∠cbe and ∠deb are same-side interior angles.

i took the test

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