2,218 Answered Questions for the topic Pre Calculus

01/08/18

find an explicit formula for each sequence
1,11,21,31,41,51             dealing with sequences in pre-calculus 
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Pre Calculus

12/14/17

list the x and y intercepts, and graph the function
f(x)=(1/x-3)
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Pre Calculus

12/14/17

a set of data is normally distributed with a mean of 28 and a standard deviation of 2. what percent of the data is between 23 and 31?
Z score problem i don't know how to solve
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Pre Calculus

12/13/17

Find (fog)(x) and (gof)(x) for each of the below equations.
f(x)=x-4 g(x)=x+5
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Pre Calculus

12/12/17

a 3 diameter tire rolls a distance of 1 mile how many revolution does it take
revolution
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12/12/17

Exponential Growth and Decay
Jose takes medication after t minutes, the concentration of medication left in his bloodstream is given by A(t)=10(0.5)0.014t , where A is in milligrams per liter. 1. Write down A(0) 2. Find the... more
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Pre Calculus Logarithms Ib Maths

12/12/17

1.find the value of Of each of the following
1.find the value of Of each of the following, giving your answer an integera.Log64+Log69   2.Let Log3P=6 and Log3Q=7Find Log3(P/Q) By expanding the logarithm      3.Solve the equations below... more
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12/12/17

Find the value of each of the following
solve    82x+1=162x-3     find the value of Of each of the following, giving your answer an integer   Log62-Log612    
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12/12/17

Solve Logarithms
Solve Log327+Log81/8-Log164=Log4x
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12/12/17

Logarithms) Write down the value of
Log327   Log81/8   Log164
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Pre Calculus

12/08/17

What's the domain of g(x)=9x-11x^4
Find the domain of g(x)=9x-11x^4 and the range of it.
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Pre Calculus

12/04/17

Find the equation of the ellipse in standard form
Find the equation of the ellipse in standard form: Center: (0,0); vertices:  (0,+/5):c=3
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Pre Calculus

12/04/17

What is the product of the complex number 5 – 2i and its conjugate?
 5-2i
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Pre Calculus

11/30/17

Dropped from a cliff.
A cliff is 36 feet above the water. If an object is dropped from the cliff, the formula h=36-16t^2 will give the height above the water's surface, in feet, of the object at t seconds from the time... more
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Pre Calculus

11/30/17

what is the measure of the smallest interior angle of the quadrilateral?
The four interior angles of a particular quadrilateral are in the ratio 2:4:4:5. In degrees, what is the measure of the smallest interior angle of the quadrilateral?
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Pre Calculus

11/26/17

Sinusoidal Function
The pressure P (in pounds per square foot), in a pipe varies over time. Five times an hour, the pressure oscillates from a low of 40 to a high of 250 and then back to a low of 40. The pressure at... more
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Pre Calculus Pre Calc

11/26/17

Find a sinusoidal function with the following four attributes:
(1) amplitude is 16, (2) period is 9, (3) midline is y=33 , and (4) f(3)=49 .
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Pre Calculus

11/21/17

pre calculus min/max area/perimeter
a farmer wants to build three rectangular pens of the same size next to a river so that they are separated by two fences. If she has 1,000 feet of fencing and does not fence the side next to the... more
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Pre Calculus

11/17/17

A landowner in Missouri employed 10 laborers to plant a total of 10,000 seedlings. If each laborer planted one seedling every 15 seconds, in how many minutes we
A landowner in Missouri employed 10 laborers to plant a total of 10,000 seedlings. If each laborer planted one seedling every 15 seconds, in how many minutes were all 10,000 seedlings planted?
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Pre Calculus

11/14/17

(a) What is the distance between the plane and the base of the arch?
A plane is flying within sight of the Gateway Arch in St. Louis, Missouri, at an elevation of 25,000 ft. The pilot would like to estimate her distance from the Gateway Arch. She finds that the... more
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11/01/17

How to determine an exponential function for this problem.
the population of deer in a region has a maximum value of 300 due to resources and predators. in 2014, the population of deer is 220 and increases in subsequent years to a level of 255 in 2016.... more
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Pre Calculus

10/30/17

You go to the doctor and he gives you 15 milligrams of radioactive dye. After 20 minutes, 4 milligrams of dye remain in your system
You go to the doctor and he gives you 15 milligrams of radioactive dye. After 20 minutes, 4 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a radiation... more
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Pre Calculus

10/25/17

Time=4 miles ÷ 55 miles per hour how to solve
How long is Mr. Landa in the car if he is going 4 miles at 55mph.
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Pre Calculus

10/23/17

Between what levels (in dozens of doughnuts) do the daily sales vary?
A doughnut shop sells a dozen doughnuts for $7.95. Beyond the fixed costs (rent, utilities, and insurance) of $165 per day, it costs $1.45 for enough materials and labor to produce a dozen... more
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10/23/17

Rational function help pls!
Find a rational function with the following properties (there is more than one possible answer): • vertical asymptote: x = 1 • horizontal asymptote: y = −2 • hole: x=−1 • x-intercept: (3,0)
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