09/19/21

Derivatives of Trigonometric Functions
f(x) = -5cosx + 7tanxf '(x) =f ′(π/4)
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09/16/21

Seven times the sum of a number and 8 equals 3
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09/16/21

AMDM Question (Mathematics)
A vector starts at point (5, -4) and ends at point (0, -8). What is the vertical component of the vector?
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09/16/21

The position function of a moving particle is given by p(t)=t2−9t+13 feet at t seconds. Find all points in time where the particle’s speed is 5ft/s.

Separate multiple answers with a comma. If the particle never reaches this speed, write None for your answer.
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09/15/21

A ball with a horizontal speed of 0.91 m/s rolls off a bench 1.12 m above the floor. How long will it take the ball to hit the floor? Round to two decimal places and include units.
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09/15/21

A block of mass 3.31 kg is hanging from a rope. The tension in the rope is 18.4 N, pulling upward on the block. What is the magnitude and direction of the acceleration of the block?
A block of mass 3.31 kg is hanging from a rope. The tension in the rope is 18.4 N, pulling upward on the block. What is the magnitude and direction of the acceleration of the block?
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09/15/21

A ball is thrown horizontally from the roof of a building 8.6 m tall and lands 9.5 m from the base.
What was the ball's initial speed?Express your answer using two significant figures.v0 = _________ m/s
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09/15/21

Algebraic expressions

What would twelve minus five times a number look like
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09/15/21

A shot-putter throws the shot ( mass = 7.3 kg) with an initial speed of 14.0 m/s at a 33.0 ∘ angle to the horizontal.
Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 1.80 m above the ground.Δx =
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09/14/21

Let h(x) = x^2-8x.
(a) Find the average rate of change from 5 to 6.(b) Find an equation of the secant line containing (5, h(5)) and (6, h(6)).The average rate of change from 5 to 6 is.
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09/14/21

How far does a runner travel if they maintain a speed of 68 m/s for 98 s?
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09/14/21

Engineering question
what enginering swing design will make the swing swing back and forth in about 2 seconds
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09/13/21

AMDM Question (Mathematics)

One force of magnitude 50 acts on an object. Another force of magnitude 66 acts on the object at a right angle, what is the magnitude of the resultant force on the object?
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09/12/21

Physics Help (Forces and Trigonometry)
Two tugboats pull a larger boat with forces of 25000 N on each tow rope. What is the resultant force on the ship of the angle between the two ropes is 40°?
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09/09/21

5(7b+8)=-38-4b Justify each step and list all the properties of equality.

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09/08/21

How much can i store weight wise on my flat office roof?
I have an office inside a warehouse with a flat roof. We would like to store some miscellaneous items on top. We were told we needed a sign that displayed the weight capacity of the roof. How would... more
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09/08/21

find QR given RS=6 and QS=7
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09/08/21

Calculus horizontal
An athlete puts a​ 16-lb shot at an angle of 30° to the horizontal from 6ft above the ground at an initial speed of 50 ft/sec. a. How long is shot in the airb. How far does shot travel
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09/08/21

Physical Quantities
A piece of metal 2mm x 5 cm x 1.5 m and its mass is 1.35 kg. Calculate:the volume of the metal piece in the density of the material in
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09/08/21

If sin ( θ ) = 1 7 and θ is in the 2nd quadrant, find the follwoing:
Give exact values. No decimals allowed! If the value doesn't exist, type DNE.cos(θ) =csc(θ) =sec(θ) =   tan(θ) =   cot(θ) =   
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09/08/21

...boat problem
A boat has a mass of  4040 kg. Its engines generate a drive force of  3510 N due west, while the wind exerts a force of  640 N due east and the water exerts a resistive force of  1710 N due east.... more
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09/07/21

A chemist needs 15.0 grams of ethanol for a reaction. If the density of ethanol is 0.789 g/ml, how many milliliters of alcohol should be used
help, how i am going to convert it to units
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09/07/21

PV=nRT Solve for T

Please help. Thank you!
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09/07/21

Basic Physics (Horizontal Motion)
Please I need help with this one, provide an in-depth step by step with complete solution and final answer.An airplane at rest accelerates on a runway at 5.25 m/s^2 for 30 seconds until it finally... more
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09/07/21

For the function f defined by f(x) = 3x/x^2+4. find the following values.
(a) f(-5) =(b) f(-x) = (c) -f(x) =
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