Answer:
1) His total commission is $1,234.3
2) The purchase of the car is $24,790.
Step-by-step explanation:
1) 21640*0.02= 432.8+ 250= 682.8
15075*0.02= 301.5+ 250= 551.5
682.8+ 551.5= 1,234.3
2) 745.8- 250= 495.8/ 0.02= 24,790
No, the longest side must be less than the sum of the smaller sides or else they won't connect (try it yourself with straw or something)
40+30>120
70>120
false, therfor they canonot be a triangle
Answer:
Step-by-step explanation:
a) the equation representing the parabola is expressed as
h = -16t² - 4t + 20
c) to determine the height after 25 seconds, we would substitute 25 for t into the given equation. It becomes
h = -16(25)² - 4(25) + 20
h = - 10000 - 100 + 20
h = - 10080
d) when the coin lands on the ground, the height would be 0. Therefore,
-16t² - 4t + 20 = 0
Dividing both sides of the equation by 4, it becomes
- 4t² - t + 5 = 0
- 4t² - 5t + 4t + 5 = 0
- t(4t + 5) + 1(4t + 5) = 0
- t + 1 = 0 or 4t + 5 = 0
t = 1 or t = - 5/4
Since t cannot be negative, then t = 1 second
The answer would be 50 and 37.
50-37 = 13
50+37 = 87
