Please Simplify these expressions:
1. 2a + 10 - 6 + 4a
2. -7 + 3x - 5x + 7
3. -5(3...
Mathematics, 05.05.2020 02:02, emilyplays474
Please Simplify these expressions:
1. 2a + 10 - 6 + 4a
2. -7 + 3x - 5x + 7
3. -5(3b - 2) + 10b
4. -8 - 4d + 3b - 6 + d
Answers: 3
Mathematics, 21.06.2019 16:30, itsdeevv
You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:
Answers: 1
Mathematics, 22.06.2019 00:20, kaybec2386
Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.
Answers: 2
Mathematics, 22.06.2019 01:30, kuadirkennedy
You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.
Answers: 1
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