What is the product of (-3s+2t(4s-t)

1 answer:

5 0

Use the FOLD method
(a+b)(c+d)=ac+ad+bc+bd

−12s^2 + 3st + 8ts − 2t^2

Collect like terms
-12{s}^{2}+(3st+8st)-2{t}^{2}

Simplify
-12{s}^{2}+11st-2{t}^{2}−12s2+11st−2t2

The answer is = -12s^2 + 11st - 2t^2

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Consider the baggage check-in process of a small airline. Check-in data indicates that from 9am to 10am, 220 passengers checked

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Answer:

3.6 minutes.

Step-by-step explanation:

According to the data given in the question, between 9 and 10 AM, 220 passengers have checked in which means that the check-in rate is 3.6 passengers per minute. If the average number of passengers waiting for check-in is 32 and if we assume that the check-in rate is constant throughout the day, then the average passenger had to wait in line for 3.6 minutes.

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3 years ago

PLEASE HELP ME SOLVE THIS THANK U!!

V125BC [204]

Step 1) Draw a dashed line through the points (0,6) and (4,7). These two points are on the line y = (1/4)x+6. To find those points, you plug in x = 0 to get y = 6. Similarly, plug in x = 4 to get y = 7. The dashed line indicates that none of the points on this line are part of the solution set.

Step 2) Draw a dashed line through (0,-1) and (1,1). These two points are on the line y = 2x-1. They are found in a similar fashion as done in step 1.

Step 3) Shade the region that is above both dashed lines. We shade above because of the "greater than" sign. This is shown in the attached image I am providing below. The red shaded region represents all of the possible points that are the solution set. Once again, any point on the dashed line is not in the solution set.