Answer:
Step-by-step explanation:
If the engine torque y (in foot-pounds) of one model of car is given by y=−3.75x^2+23.2x+38.8
The engine speed is at maximum if dy/dx = 0
dy/dx = -2(3.75)x+23.2
dy/dx = -7.5x + 23.2
since dy/dx = 0
0 = -7.5x + 23.2
7.5x = 23.2
x = 23.2/7.5
x = 3.093
Hence the maximum torque is 3.09 rev/min
Answer:
104 14/15
Step-by-step explanation:
15 goes into 1574 104 times and you have 14 remaining so you have 104 with a remaining fraction of 14/15.
420.00 that's how much he would have saved in a year
Answer:
Step-by-step explanation:
M' = (8,2)
A' = (7,6)
T' = (2,6)
H' =(3,2)
If this is a reflection across the y axis, then all that will change is the x value. You have to read that carefully to make sure you understand it.
Notice that T = (-2,6). All that happens is the the minus becomes a plus.
Answer:
6sqrt(3)
Step-by-step explanation:
Think of the square root like a variable
sqrt(3) *5 + sqrt(3)
Factor it out
sqrt(3)(5+1)
sqrt(3) (6)
6sqrt(3)
