Wednesday
May 22, 2013

# Posts by Alaina

Total # Posts: 29

Calculus-Solved-Why is this wrong?
use differentials to approximate the change in f(x) if x changes from 3 to 3.01 and f(x) = (3x^2-26)^10 derivative: 10(3x^2-26)^9 f(x+ delta x)= 1 + 10(3x^2-26)^9 * 0.01 = 1 + 10(0.01) <-- Substitute 3 for x = 1 + 0.1 = 1.1 delta y= 1.1 - 1 delta y= 0.1 but 0.1 is incorrect...

Calculus-Solved
This is also what I entered, yet it is wrong

Calculus-Solved
this is wrong. but can you explain how to correct it? thanks use differential of x^-1/3 to approximate solution to (1/cube root(7.952)) differential: df= -1/3(x^(-4/3)) * dx df= -1/48 * 0.0048 df= -0.001 0.500 - 0.001 = 0.499 but this is wrong.

math
need to know how to find the distrbutive property of 50x62,159= (50x )+(50x )+(50x100)+(50x50)+(50x9)

physics
if a bowling ball with a 22 cm diameter is half way submerged in a bucket of water, what is its mass?

math
What are the corner points for the feasible region given on the right? gg

trig
verify the identity. cos2 x - sin2 x = 1 - 2sin2 x the 2's next to the sin and cos on the right sides are powers.

Math
Liana has two toy planes. The first plane is on a string that is 12 feet long. The second plane can go in a circle that has a diameter of 22 feet. Which plane can make a larger circle in the air? Explain.

Physics
A loaded penguin sled weighing 81 N rests on a plane inclined at angle θ = 21° to the horizontal (Fig. 6-23). Between the sled and the plane, the coefficient of static friction is 0.24, and the coefficient of kinetic friction is 0.13. (a) What is the minimum magnitude...

Physics
The two blocks (m = 13 kg and M = 89 kg) are not attached to each other. The coefficient of static friction between the blocks is μs = 0.50, but the surface beneath the larger block is frictionless. What is the minimum magnitude of the horizontal force (F) required to kee...

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