2,218 Answered Questions for the topic Pre Calculus

12/11/16

Draw the graph representing High and low tide from midnight. Make a trigonometric function that describes the high and low tide behavior from midnight.
a beach has reported its high tide to be at a depth of 58ft and its low tide to be at a depth of 2 ft. High tide occurs at 6:30 am while low tide occurs 6 hours and 12 minutes after high tide. Draw... more
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Pre Calculus

12/08/16

Find a polynomial​ P(x) with real coefficients having a degree​ 6, leading coefficient 4​, and zeros 3​, 0​ (multiplicity 3), and 4-4i.
i need to know how to make this equation  
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Pre Calculus

12/01/16

Simplifying exact values
What is csc^2x-1 simplified? 
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Pre Calculus

11/26/16

If a city of 180,000 has an expected growth rate of 4%, how big will it be in 5 years?
P=Aent   The population of a city grows according to P=Ae^nt where projected population is P, starting population is A, time in years is t, and n is an observed or expected rate of increase in... more
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Pre Calculus

11/11/16

1. Using the procedure described in the lesson, use limits to determine df/dx for f(x)= x³ . Be sure to show the main steps of your derivation.
1. Using the procedure described in the lesson, use limits to determine df/dx for f(x)= x³ . Be sure to show the main steps of your derivation. 
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Pre Calculus

11/11/16

Find the slope of f(x)= x³ at each of the following points. a. x = 0 b. x = 1 c. x = 2 d. x = -1
I need help with an assignment in my pre-calculus class on universal class :   Find the slope of f(x)= x³ at each of the following points. a. x = 0 b. x = 1 c. x = 2 d. x = -1
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Pre Calculus

11/04/16

f(x) = x2 − 10x + 26
Determine whether the following function has a maximum, a minimum, or neither. If it has either a maximum or a minimum, find what that value is and where it occurs. Reduce all fractions to lowest... more
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Pre Calculus

11/03/16

A square lawn has area 3200 ft squared . What is the radius of the? circle?
A square lawn has area 3200 ft squared A sprinkler placed at the center of the lawn sprays water in a circular pattern that just covers the lawn. What is the radius of the? circle?
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Pre Calculus

10/26/16

A carousel makes 12 revolutions during a 5-minute ride. What is the angular frequency of the carousel?
 How do you find angular frequency in word problems?
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10/25/16

35 T-Shirt order costs 337.50. 56 cost 516. Include shipping and handling. Cost per shirt? Shipping and handling Charge? Linear Equation?
The first order was for 35 T-shirts and it cost $337.50. The second order was for 56 T-shirts and it cost $516. The prices include a standard shipping and handling charge. What is the cost per... more
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10/21/16

how much was invested in each vehicle?
Country Day's scholarship fund receives a gift of $ 188240.607247983. The money is invested in stocks, bonds, and CDs. CDs pay 2.5 % interest, bonds pay 5.5 % interest, and stocks pay 10.1 %... more
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Pre Calculus

10/10/16

slope is – 2/7 and the x-intercept is ( – 7 , 0 )
Find the equation of the line in the form ax+by=c
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Pre Calculus

10/04/16

Tan x = square root of -3 if 0<x<360
(tan x) = √-3 if 0°≤ x ≤ 360°
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Pre Calculus

10/02/16

A number divided my 9 is equal to the number decreased my 80. Find the number
Can you please solve for me
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Pre Calculus Math Algebra 2 Math Help

09/27/16

express the following function f(x) as a composition of two functions f and g: f(g(x)) F(x)=x^2/(x^2 +4) Part 1: What function is g(x) Part 2: What function is
express the following function f(x) as a composition of two functions f and g: f(g(x))F(x)=x^2/(x^2 +4) Part 1: What function is g(x)Part 2: What function is f(x)PArt 3: Verify that f(g(x))=F(x)
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Pre Calculus

09/20/16

-4f(x-1)+2 has both rigid and non rigid transformations. True or false
Transformations
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09/12/16

The hardwood Floor Word Problem
Jason and Omar are laying a hardwood floor. Working alone, Jason can do the job in 20 hours. If the two of them work together, they can complete the job in 12 hours. How long would it take Omar to... more
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09/07/16

Pre-Calculus: Writing Linear Equations
Write an equation in slope-intercept form of the line that has slope -4 and passes through the point at (2,-2).
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Pre Calculus

09/06/16

idk how to solve this really need help
A ladder l = 21 ft long is leaning against thewall of a house. The base of the ladder ispulled away from the wall at a rate of 2.1 ft/s,and the top slides down the wall. Considerthe triangle formed... more
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Pre Calculus

09/06/16

Neil believes the two arcs subtwnded bt a 195 degree angle and by a -165 degree angle in a circle with a radius of 10 inches will have the same length. Explain
Neil believes the two arcs subtwnded bt a 195 degree angle and by a -165 degree angle in a circle with a radius of 10 inches will have the same length. Explain neils mistake
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Pre Calculus

09/05/16

G(x)=x/x^2-5x
Find the domain of the function 
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Pre Calculus

09/05/16

I don't know where to start I know the negatives need to change places so they are not negative anymore that's it.
(x-1/2 Y4/3)0 times X-3Y0)2/3÷X2/3Y-3/4
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Pre Calculus

09/05/16

how would I do 2 divided by the cube root of 20
2÷³√20
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Pre Calculus

08/31/16

What is f(x) = x-4 over the square root of x
I can't solve this  please help!
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Pre Calculus

08/28/16

2 trucks leave a warehouse at the same time. 1 travels east at 55mi/hr, and the other travels due west at 47mi/hr. After how many hours will the 2 trucks be
2 trucks leave a warehouse at the same time. 1 travels east at 55mi/hr, and the other travels due west at 47mi/hr. After how many hours will the 2 trucks be 714 miles apart   
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