03/09/24

pre-calculus help

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 52 and 68 degrees during the day and the average daily temperature first... more
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08/17/23

Velocity Timing
Answer by filling in the blank below, then explain your answer.Starting from rest, an automobile's velocity v (in ft/sec) is given by v = 180t / 2t + 10, where t is the time in seconds after the... more
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07/11/23

Use the situation below for Part A, Part B, and Part C. 
A teacher is interested in determining the effect the amount of time spent studying has on mathematics test scores. The teacher surveys twenty students in her first-period class.Part A: Identify... more
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06/06/23

6.3 Summation Notation
The expression (1)/(5)(ln(2+(1)/(5))+ln(2+(2)/(5))+ln(2+(3)/(5))+ln(2+(4)/(5))+ln(2+(5)/(5))) is a Riemann sum approximation of which of the following integrals?a) \int_2^3 ln((x)/(5))dxb)... more
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06/05/23

physics homework question
An object moves along the x-axis according to the equation x = 2.95t2 − 2.00t + 3.00, where x is in meters and t is in seconds.a- Determine the instantaneous speed at t = 4.20 s.b-Determine the... more
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05/27/23

How to write this proof by induction
Prove by Induction √(2n)! <2^n * n!, n≥1, n∈ℕ.Hi I am looking for how to write the proof to this, and I only recently started to study induction proofs, so an extra explanation or annotations... more
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05/25/23

Two separate forces, 𝐹1 ⃗⃗⃗ = [200, 500, 450] and 𝐹2 ⃗⃗⃗ = [200, -400, 300], both measured in newtons, act on an object through a displacement defined by 𝑠 = [4, 2, 13], in metres
a)Calculate the work done by force 𝐹1⃗⃗⃗ in the direction of travel.b) Calculate the work done against gravity by force 𝐹2 .
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05/23/23

Integration of trig formulas
Was is the integral of sin(x) + cos(x)?
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05/21/23

A person lifts a 6.5 kg box of bricks a vertical distance of 1.20 m and then carries the box horizontally a distance of 13.30 m.
(a) How much work is done by the person in the process?(b) How much work is done by gravity in the process?
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05/19/23

finding the work needed to riaise a bucket to a platform
 A bucket of water of mass 30 kg is pulled at constant velocity up to a platform 55 meters above the ground. This takes 20 minutes, during which time 7 kg of water drips out at a steady rate... more
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05/17/23

math question percentages of orange juice
How much of​ a(n) 70% orange juice drink must be mixed with 18 gallons of a 10% orange juice drink to obtain a mixture that is 50% orange​ juice?
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05/17/23

percentages of orange juice
How much of​ a(n) 60% orange juice drink must be mixed with 14 gallons of a 40% orange juice drink to obtain a mixture that is 50% orange​ juice?
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05/17/23

True or false f(x) and f ‘ (x) have the same vertical translation

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05/16/23

finding f prime

finding f'(1/4)let f(x) = (arcsin(√x))2 find f'(1/4)
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05/28/21

For slope of the Hubble Constant, what does the 'rise' direction represent?
DistanceX axisY axisRecession Velocity (RV)
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03/10/21

Does Plato have a theory regarding ancient astronomy?
I know that Plato has a lot of theories regarding philosophy but does he have any theory about ancient astronomy. I need it for a presentation please answer
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05/08/14

do not be misled . ALTHOUGH THE HEAT LEAKING SLOWLY OUT OF A PLANET'S INTERIOR DOES EVENTUALLY GET RADIATED AWAY BY ITS SURFACE , MOST OF THE RADIATION THAT A
TERRESTRIAL PLANET EMITS IS SIMPLY RETURNING TO SPACE HEAT ENERGY THAT THE PLANET RECEIVED BY ABSORBING LIGHT FROM THE SUN- ULTRA VIOLET , VISIBLE AND INFRARED (BUT PRINCIPALLY VISIBLE) . THE... more
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