Need on this question, the seventh-graders at the middle school are going are going on field trip to the aquarium. they will spend 4 1/4 hours at the aquarium. the students will need to visit five exhibits while they are there. if the time is evenly distributed, how many minutes will the students spend at each exhibit?

They should be at each exabit for about 51 min

Step-by-step explanation:

answer: d. $20

step-by-step explanation:

just 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