Answer:
Part 1) The engine speed that maximizes torque is
Part 2)The maximum torque is
Step-by-step explanation:
<u><em>The correct equation is</em></u>
This is the equation of a vertical parabola open downward (because the leading coefficient is negative)
The vertex represent a maximum
The x-coordinate of the vertex represent the engine speed that maximizes torque
The y-coordinate of the vertex represent the maximum torque
Solve the quadratic equation by graphing
using a graphing tool
The vertex is the point (3.093,74.683)
see the attached figure
therefore
The engine speed that maximizes torque is
---> because is in thousands of revolutions per minute
The maximum torque is
Answer:
This is true. 9 is greater than 3.
Answer:
6 groups of 8 is the same as 48
Step-by-step explanation:
I got none of the above my answer is 1.6 BTUs/ft3. I did 400 x 8 x 3 for total BTUs = 9600 btus and the volume of the room was 20 x 30 x10 ft = 6000 cu ft so 9600/6000= 1.6 BTUs/ft3
Answer:
1) 0.487,0.0436
2) 56.3 cm
Step-by-step explanation:
Let X be the scores ranging from 0 to 20 of the Psychology students at Wittenberg University completed the Dental Anxiety Scale questionnaire.
X is N(11,3.5)
a) the probability that someone scores between a 10 and a 15 on the Dental Anxiety Scale.
=
b)
c) Y is N(50, 20) where Y is tree diameter at breast height 110 years after the fire.
P(X>d) = 0.30
Corresponding Z value = 0.525
d = 56.3 cm