Mathematics, 25.06.2019 05:50 angelrenee2000
1. desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? a.8,000 + 24x b.8,000 β 24x c.8,000 + 2x d.8,000 β 2x 2. avi and sergi are saving money to buy a game system. avi has $2 more than double the amount of money sergi has. together, they have $40. write an equation to determine how much money sergi and avi have together. a. x + 2x + 2 = 40 b.2x + 2 = 40 c. x + 2x β 2 = 40 d.2x β 2 = 40 isabella solved the following equation: 4x β 2x + 8 = 6(x + 4) step work justification 1 4x β 2x + 8 = 6x + 24 distributive property 2 2x + 8 = 6x + 24 combine like terms 3 β4x + 8 = 24 addition property of equality 4 β4x = 16 subtraction property of equality 5 x = β4 division property of equality which step has an incorrect justification? a. step 1 b. step 2 c. step 3 d. step 4
Answers: 1
Mathematics, 21.06.2019 15:10
The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.
Answers: 1
Mathematics, 21.06.2019 18:00
Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 20:00
Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?
Answers: 2
1. desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decrea...
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