10/31/20

Let f be the function given by f(x) = (|x ^ 2 -3| * (x + 0.5))/((x ^ 2 - 3)(x + 0.5)) which of the following open intervals is f continuous ?

Let f be the function given by f(x) = (|x ^ 2 -3| * (x + 0.5))/((x ^ 2 - 3)(x + 0.5)) which of the following open intervals is f continuous ? A ) (- 2, - 1) B ) (- 1, 0) C) (0, 1) D) (1, 2)I... more
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10/30/20

Let f be the function defined. For what values of b is f continuous at x=2
Let f be the function defined. For what values of b is f continuous at x=2f(x)= {e^bx for x≤2 {1.5x + b for x≥21) 0.508 only2) 0.647 only3) -1.282 and 0.5084) -2.998 and 0.647I'd also... more
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10/30/20

I can't get the right answer could you please help, Thank you so much!
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 53 degrees at midnight and the high and low temperature during the day are 62 and 44... more
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10/30/20

The volleyball is played with a ball of about 270 g and 21 cm in diameter.
In one game, the ball ended up in a pool with so much strength that it almost reached the bottom of it and then went up to the surface.Calculate:a) The force exerted by the pool water on the... more
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10/30/20

Calculus 1 Help
Assume the acceleration of the object is a(t) = −9.8 meters per second. (Neglect air resistance.) With what initial velocity (in m/sec) must an object be thrown upward (from a height of 3 meters)... more
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10/30/20

Find f if f'(x) =

Find f if f'(x)=2cos(x)+sec2(x), -pi/2<pi/2, and f(pi/3)=5I think I am supposed to find the antiderivative of f(x) and this is what I got2sin(x)+tan(x)+CI know its not simply putting 5 in for C,... more
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10/30/20

How to write a function from a table.
x=2,3,4,5,6y=20,37,49,66,89I am trouble determining what type of function is that and have ruled out linear, exponential, and quadratic.Is this some sort of linear regression? I believe the answer... more
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10/30/20

The function F is continuous on the interval -1<x<3 and is not continuous on the interval -1<= x <= 3. Which of the following could NOT be an expression for f(x)?

The function F is continuous on the interval -1<x<3 and is not continuous on the interval -1≤ x ≤ 3. Which of the following could NOT be an expression for f(x)? 1) x+1/ x-32) x-3/ x+13) (x+1)... more
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10/30/20

Real and Non-Real Solutions
Here is the graph of :What could you change about this function in order to make a new function that has non-real solutions?
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10/30/20

A triangle with an area of 280 square yards has a height that is 6 more than 8 times its base. Find the base and height, in yards, of the triangle.
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10/30/20

A bicyclist and his bicycle have a mass of 105 kg. What force is necessary to bring him to rest when he is traveling at 25 m/s and must stop to avoid a tree 4 m in front of him?

A bicyclist and his bicycle have a mass of 105 kg. What force is necessary to bring him to rest when he is traveling at 25 m/s and must stop to avoid a tree 4 m in front of him?
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10/30/20

A crop duster is flying towards a ground fire at a constant height of 200 meters above the ground
A crop duster is flying towards a ground fire at a constant height of 200 meters above the ground. If the distance between the crop duster and the fire is decreasing at a rate of 40 meters per... more
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10/30/20

(a) What size squares should be cut from the corners to obtain a box of the maximum volume. (b) What are the sides of the square if k = 12 inches?

A square sheet of cardboard of side k is used to make an open box by cutting squares of equal size from the 4 corners and folding up the sides. (a) What size squares should be cut from the corners... more
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10/29/20

What is the period of the crystal's motion?
A quartz crystal vibrates with a frequency of 26,621 Hz. What is the period of the crystal's motion?
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10/29/20

Physics kinematic
1. as the race begins you accelerate at a constant rate of 0.49 m/s^2 . the finish line is 100m away from the starting line, what was your velocity as you crossed the finish line.for this question... more
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10/29/20

Can someone please help me I'm stuck on this question?
A 1.20-kg object is held 1.00 m above a relaxed, massless vertical spring with a force constant of 315 N/m. The object is dropped onto the spring.(a) How far does the object compress the... more
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10/29/20

Can someone please help with my question?
A toy cannon uses a spring to project a 5.20-g soft rubber ball. The spring is originally compressed by 5.01 cm and has a force constant of 8.01 N/m. When the cannon is fired, the ball moves 15.9... more
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10/29/20

How can I solve this question? Please Help?
A 40.5 kg box initially at rest is pushed 6.00 m along a rough, horizontal floor with a constant applied horizontal force of 150 N. If the coefficient of friction between box and floor is 0.300,... more
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10/29/20

How can I solve this please help?
A crate is given a push across a horizontal surface. The crate has a mass m, the push gives it an initial speed of 3.00 m/s, and the coefficient of kinetic friction between the crate and the... more
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10/29/20

How can I solve this please help?
A light, rigid rod is 65.2 cm long. Its top end is pivoted on a frictionless horizontal axle. The rod hangs straight down at rest with a small, massive ball attached to its bottom end. You strike... more
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10/29/20

please help with these two, thank you so much!
a)Simplify and write the trigonometric expression in terms of sine and cosine:cot(−x)cos(−x)+sin(−x) = −1/f(x) F(x)= ?b) If tan2t−sin2t=sinat/cosbt, then the positive power a= the positive power b= 
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10/29/20

What is the function?
Find the function F that satisfies the following differential equations and initial conditions.F''(x)= cosx, F'(0)= 9, F(pi)= 8
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10/29/20

Find the velocity of the planet given by description below.
Consider a planet of mass m, moving in a circular orbit of radius r, around a star of mass M. From a = v2/r, the force of gravity and Newton’s second law, find the velocity of the planet. Assume... more
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10/28/20

A student 6 feet tall stands a few feet in front of a 12 feet tall lamppost and starts to walk in a straight path away from the lamppost.
A student 6 feet tall stands a few feet in front of a 12 feet tall lamppost and starts to walk in a straight path away from the lamppost. When the tip of his shadow is moving 5 feet per second from... more
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10/28/20

Physics- Angle Forces
Joe pushes down the length of the handle of an 11.1 kg lawn spreader. The handle makes an angle of 42.7 ◦ with the horizontal. Joe wishes to accelerate the spreader from rest to 1.33 m/s in 1.3 s.... more
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