15,254 Answered Questions for the topic precalculus
Precalculus
04/25/23
Exponential Decay Rate
The half-life of caffeine in a healthy adult's bloodstream is 5.7 hours. Suppose James, a healthy adult, drinks a Grande Latte, which contains 150 mg of caffeine, at 4 p.m. (assume, perhaps...
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04/25/23
Let (-2, 7) be a point on the Terminal Side of θ
Let (-2, 7) be a point on the Terminal Side of θ. Find the exact values of Cosθ, Secθ, and Cotθ
Precalculus Math
04/25/23
word problem on compound interest
Boris needs $8058 for a future project. He can invest $6000 now at an annual rate of 7%, compounded quarterly. Assuming that no withdrawals are made, how long will it take for him to have enough...
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Precalculus Math
04/25/23
Finding the time in a word problem on compound interest
Suppose that $2000 is placed in a savings account at an annual rate of 8.6%, compounded semiannually. Assuming that no withdrawals are made, how long will it take for the account to grow to $3178?...
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Precalculus
04/25/23
precalculus help
imgur.com/gallery/EhOVveC link to the question of the assignment since i cannot upload a picture here
Precalculus
04/25/23
precalculus help
All work must be shown clearly and neatly to receive full credit.SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.Find the missing parts of the...
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Precalculus
04/25/23
Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express the quotient P(x)/D(x) in the form
Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x), and express the quotient P(x)/D(x) in the formP(x) = x3 + 6x + 5, D(x) = x − 4
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Precalculus Math
04/24/23
continuous exponential growth model
The mass of a substance, which follows a continuous exponential growth model, is being studied in a lab. A sample increases continuously at a relative rate of 4% per day. Find the mass of the...
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Precalculus
04/24/23
The area of a rectangular wall of a barn is 300 square feet. Its length is 10 feet longer than twice its width. Find the length and width of the wall of the barn.
Suppose an object is dropped from a lunar cliff and its speed in ft/sec. after t seconds is given by v(t)=5.3t
If the object lands after 5 seconds, how high (in ft) is the cliff?
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A train travels along a track and its speed (mph) is given s(t)=29t for the first half hour. Its speed is constant and equal to s(t)=29/2 after the first half hour. t is in hours.
How far (miles) does the train travel in the first hour?
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Precalculus
04/23/23
Precalculus college
2csc(2pi/4 x+25/4)Find the period and the horizontal shift
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Precalculus
04/23/23
Pre calculus sinusoidal graphs
A ferris wheel is 40 meters in diameter and boarded from a platform that is 4 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel...
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How to find the derivative of g(x) = sec^−1 (x^3).
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How to find dy/dx if y = cos^−1(e^4x).
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Precalculus
04/23/23
pre calc question
A car was valued at $37,000 in the year 1993. The value depreciated to $15,000 by the year 2003.A) What was the annual rate of change between 1993 and 2003? r = Round the rate of decrease to 4...
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If j(x) = f(x3), what would j′(−1), plz explain.
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What would the equation of the line tangent to y equals negative 2 divided by the quantity x squared minus 3 times x plus 3 at x = 1.
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Precalculus
04/22/23
An initial amount of 500 g of a certain radioactive substance decays according to A(t)=500e^-.0333t Where tea is measured in years find the half-life of the substance.
An initial amount of 500 g of a certain radioactive substance decays according to A(t)=500e^-.0333t Where t is measured in years find the half-life of the substance.How do I solve this? It’s on my...
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Precalculus Trigonometry
04/22/23
SO CONFUSED HELP
Give 3 different names for the following point at least one needs to have a negative r at least one needs to ha a negative Thea Image below...
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Precalculus Trigonometry
04/22/23
QUICK HELP?!?!?!?!
rewrite r=4costhea in rectangular formshow work. Your final answer must be in standard form of a circle.(x-h)^2+(y-k)2=r2
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Precalculus Trigonometry
04/22/23
QUICK HELP ????!
Find the product Z1=1/2(cis pi/3) and z2=3(cos pi/6+ i sinpi/6) then place your answer in rectangular form show work please
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Precalculus
04/22/23
pre calc question
Starting with the graph of f(x)=7x, write the equation of the graph that results from (a) shifting f(x) 1 units downward. y= (b) shifting f(x) 8 units to the left. y= (c)...
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04/21/23
algebra one, word equation
The number of girls in Mr. Taylors algebra class exceeded the number of boys by 5. If there were 39 pupils in the class, how many were girls.
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04/21/23
Algebra one, word equation
Jane and Sophia went to the corner store where packages of gum cost 85 cents each and candy bars cost 60 cents each. They spent $15 and bought 4 more packages of gum than candy bars. How many...
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