15,254 Answered Questions for the topic precalculus

02/06/24

Graph help for tranfromation, reflection stuff. PLease help out :)
a graph of f(x)=1/4|cos(pi(x-1/2))-3| Can you tell me all that is happening here including the transformations, reflection, stretch/compression, shifts, etc, and the vertex and x/y values, and how... more
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Precalculus Math Calculus Trigonometry

02/06/24

plzz help, urgent (calculus)
evaluate tan(sin^-1(1/4)). g(x)+ (x-1)/(x+2). a) what is the domain of g(x) b) verify (with sketch and or other argument) that g is a one-to-one function. c)find a formula for the inverse function.... more
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Precalculus Math Calculus Trigonometry

02/06/24

plzz help urgent, calculus :)
Solve the following two problems related to trigonometric functions and their inverses:(a) Solve the equation cot x = 2sin(2x) for x E [0,pi}.(b) Evaluate tan(sin^-1(1/4)).
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Precalculus Math Calculus Trigonometry

02/06/24

Plzz help (Calculus).. quick help :) Urgent
You put D0 dollars into your savings account in a bank that offers a fixed annual interest rate. If the interest is compounded continuously, one can derive that at a later time, in year t>0, the... more
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Precalculus Math Calculus Trigonometry

02/06/24

plz help urgent. Calculus

√(x + 1/x-1) , and g(x)=lnxa) determine the domains and ranges of these functions; b) find formulas for (f◦g)(x) and (g◦f) (x) ; c) find the domain of the composite functions of part(b).
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Precalculus

02/06/24

Do the rectangular coordinatesand the polar coordinatesrepresent the same(− 8,− 15)(17,− 118) point? Mathematically justify your response and explain your reasoning.

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Precalculus

02/05/24

No content in recording
Hi,My daughter Eesha Hariharan had her first session with Josh today (feb 4th) at 8pm CST. I tried to wach the recording to see if teacher is a good fit, but I can see and hear them, but do not see... more
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Precalculus Math

02/03/24

If the final examination counts as two grades, what must he get on the final to earn an A in the course?
To earn an A in a​ course, a boy must have a final average of at least 84%. On the first four​ examinations, he has grades of 79​%, 85​%, 75​%, and 75​%. If the final examination counts as two... more
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Precalculus

01/31/24

The count in a bacteria culture was 500 after 10 minutes and 1300 after 40 minutes.
The count in a bacteria culture was 500 after 10 minutes and 1300 after 40 minutes. Assuming the count grows exponentially. The initial size is 363.43, and the doubling period is 21.87min. Find the... more
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Precalculus

01/31/24

Temperature Question
A roasted turkey is taken from an oven when its temperature has reached 185 Fahrenheit and is placed on a table in a room where the temperature is 75 Fahrenheit.(a) If the temperature of the... more
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Precalculus

01/31/24

Investment Growth
Find the time required for an investment of 5000 dollars to grow to 8000 dollars at an interest rate of 7.5 percent per year, compounded quarterly.
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Precalculus

01/31/24

The count in a bacteria culture was 500 after 10 minutes and 1300 after 40 minutes.

The count in a bacteria culture was 500 after 10 minutes and 1300 after 40 minutes. Assuming the count grows exponentially, What was the initial size of the culture?    Find the doubling... more
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Precalculus

01/31/24

You go to the doctor and he gives you 12 milligrams of radioactive dye.

You go to the doctor and he gives you 12 milligrams of radioactive dye. After 16 minutes, 7.25 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a... more
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Precalculus

01/30/24

Precalculus 12 grade
Convert 257.285 degrees to degrees, minutes, seconds
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Precalculus

01/29/24

Pre calculus 12 grade
Convert 120 degrees to revolution. Leave your answers in simplest fraction form
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Precalculus Math Calculus Trigonometry

01/29/24

Trig help-urgent
Solve the following inequality. Express the exact answer in interval notation, restricting your attention to 0 ≤ x ≤ 2𝜋.tan(x) ≥ 1
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Precalculus Math Calculus Sat Math

01/29/24

Urgent calculus help
Solve the following inequality. Express the exact answer in interval notation, restricting your attention to −𝜋 ≤ x ≤ 𝜋. sin2(x) < 1/2
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Precalculus Math Calculus Sat Math

01/29/24

midterm help-Calculus help, urgent
Solve the following inequality. Express the exact answer in interval notation, restricting your attention to −𝜋 ≤ x ≤ 𝜋. sin2(x) < 3/4
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Precalculus

01/27/24

Pre-calculus questions
Atmospheric pressure P in pounds per square inch is represented by the formula P= 14.7e^-0.21x , where x is the number of miles above sea level. To the nearest foot, how high is the peak of a... more
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Precalculus Trigonometry

01/26/24

Graphs of the Sine and Cosine Function
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 58 degrees at midnight and the low and high temperature during the day are 51 and 65... more
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Precalculus

01/26/24

precalculus questions
having a hard time getting a few questions answered and understanding how to get the correct answers.first problem:Expand the logarithm as much as possible. Rewrite the expression as a sum,... more
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Precalculus

01/26/24

Find the perimeter and area of an isosceles triangle whose vertex angle is 35 degrees and whose two equal sides each measure 15 cm
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Precalculus

01/25/24

Periodic Functions
On a plot, how do I plot of f(x) =−4sec (π4x) (4)?
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Precalculus

01/25/24

Periodic Functions
Outside temperature over a day can be modelled using a sine or cosine function. Suppose you know the high temperature for the day is 96 degrees and the low temperature of 74 degrees occurs at 2 AM.... more
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Precalculus

01/25/24

Graphs of the Sine and Cosine Function
1234-1-2-3-41234-1-2-3-4-5-6Based on the graph above, determine the amplitude, period, midline, and equation of the function. Use f(x)�(�) as the output.Amplitude: Period: Midline:   Function:   
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