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Precalculus Homework

01/31/16

SImplify the expression?

Simplify the expression into a single fraction of the form Numerator/Denominator ,and determine the numerator and the denominator as functions of u. (You do not have to factor the numerator and do... more

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Precalculus Homework Functions Word Problem

01/31/16

Express the total cost of the cylinder as a function of r?

The volume of the cylinder is 3900 cubic feet. The bottom of the cylinder is reinforced steel, costing $35 per square foot, whereas the sides and top cost just $10 per square foot. Express the... more

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Precalculus Homework Area Of Rectangle

01/31/16

Express the area of the sidewalk as a function of x.

A garden is in the shape of a rectangle. A sidewalk of width 5 ft surrounds the garden. One side of the garden has length 20 ft. The other side has length x. Express the area of the sidewalk as a... more

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Precalculus Homework

01/30/16

Express the total area A enclosed by both squares (in sq.in.) in terms of x.

A piece of wire 13 inches long is cut into two pieces and each piece is bent into a square. If x denotes the length (in inches) of the first piece, express the total area A enclosed by both squares... more

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Precalculus Homework

01/30/16

Express the product of the two numbers as a function of x.

The sum of two numbers is 85. Let x denote one of the numbers. Part 1: Express the product of the two numbers as a function of x. Part 2: Express the sum of the square roots of the two numbers... more

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Precalculus Homework

01/27/16

Express the number in the form a/b, where a and b are integers.

Express the number in the form a/b, where a and b are integers. 4-²/ 5-²

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Precalculus Homework Functions Word Problem

01/27/16

Write a formula for f(x)

Let f(x) be defined on the positive real numbers as follows:Start with a number x.Take the square root of the number and add 5 more than the number you started with.Square the result and add 7 more... more

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Precalculus Homework

01/27/16

Let f(x) = 7 x2 + 6 . Evaluate f ( 1 + v 2 ) . IMPORTANT: Provide an exact expression, not a decimal approximation

I keep getting 27+ 7√2 but this is incorrect.

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Precalculus Homework Word Problem

01/26/16

The population dynamics of many fish are characterized by extremely high fertility rates among adults and very low survival rates among the young.

The population dynamics of many fish are characterized by extremely high fertility rates among adults and very low survival rates among the young. A mature specimen of a particular fish may lay as... more

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Precalculus Homework Precalculus Functions Function Decomposition

01/25/16

Please help me with function decomposition? Pre-Calculus?? Very confused!

1. Given the composition h(x)=f(g(x)) If h(x)=(x+3)^8 and f(x)=x^8, find the function g(x). 2. Given the composition h(x)=f(g(x))If h(x)=1/x+3 and g(x)=x+3 , find the function... more

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Precalculus Homework Pre Sale homework

01/19/16

50-e^-.02x=200

Have to solve for x.

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Precalculus Homework

01/19/16

Force of 90lb acts on An object at an angle of 55 degrees. A 2nd force of 100lbs acts in object at angle of -60 degrees. Find direction & magnitude of force

Need help on this please

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Precalculus Homework

01/19/16

Find direction angle of vector <-2,-7>. Give direction angle as an angle in [0degrees,360degrees) rounded to the nearest tenth.

I need help on this part of my homework.

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Precalculus Homework

01/18/16

If a sample of an element has a mass of 7.7grams and contains 0.285moles, what is the element?

I need help on this. I am clueless

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Precalculus Homework Degrees Inverse Trignometric Functions Radians

01/13/16

Graphing Trig. Functions & Inverses

Evaluate In degrees: 1. Sin^-1 (-2pi) 2. arctan (- square root 3/3) 3. sin (cos^-1(- square root 3/2) Evaluate in Radians 1. Arctan (-1) 2. cos^-1 (- 1/2)

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Precalculus Homework

01/10/16

I'm not sure which law or how I'm supposed to solve this problem (law of sine or law of cosine)

A restaurant is located at the intersection between Walker Street and Throop Street. Heather's house is on Walker Street and it is 2.6 miles from the restaurant. Patricia's house is on Throop... more

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Precalculus Homework Compound Interest

01/07/16

I don't quite understand what I'm doing wrong with this question. Please help.

Hannah would like to make an investment that will turn 6000 dollars into 25000 dollars in 8 years. What quarterly rate of interest, compounded four times per year, must she receive to reach her... more

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Precalculus Homework

01/06/16

The "minute hand" of a clock is 5 inches long.

What is the angular speed of the "minute hand" in rad/min? How many inches does the tip of the minute hand travel each min? I need exact answers for both, and please show work!

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Precalculus Homework

01/06/16

Angular and Linear velocity?

A wheel spins through 31 revolutions per minute. Find the angular velocity and the linear velocity if the radius of the wheel is 1.7 feet.

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Precalculus Homework

01/06/16

Pre Cal Question

evaluate in Degrees: 1. sin^-1(-square root 3 / 2) 2. arctan(square root 3) 3. arcsin (0) 4. sin(cos ^-1 (-squareroot 3 / 2))

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Precalculus Homework Precalculus

01/06/16

A truck with 18-in.-diameter wheels is traveling at 55 mi/h.

Find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes How many revolutions per minute do the wheels make? Please show work.

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Precalculus Homework

12/17/15

Find the approximate solution to the equation by graphing an appropriate function on a graphing calculator. x² = 1.9^x. Therefore x˜__

(Round to three decimal places as needed. Use a comma to separate answers as needed)

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Precalculus Homework

12/17/15

How long does it take for a deposit of $500 to double at 7% compounded continuously?

How many years does it take to double? ______years________days

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Precalculus Homework

12/17/15

Find all real numbers in the interval [0, 2p) that satisfy the equation. Use radian measure 11 sin ² x – sin x = cos ² x

The solution set is {-- --}. (Round to the nearest tenth as needed. Use a comma to separate answers as needed)

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Precalculus Homework

12/15/15

Find the product of -4-3i and its conjugate. The answer is a+bi where

the real number a equals the real number b equals

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SImplify the expression?

Express the total cost of the cylinder as a function of r?

Express the area of the sidewalk as a function of x.

Express the total area A enclosed by both squares (in sq.in.) in terms of x.

Express the product of the two numbers as a function of x.

Express the number in the form a/b, where a and b are integers.

Write a formula for f(x)

Let f(x) = 7 x2 + 6 . Evaluate f ( 1 + v 2 ) . IMPORTANT: Provide an exact expression, not a decimal approximation

The population dynamics of many fish are characterized by extremely high fertility rates among adults and very low survival rates among the young.

Please help me with function decomposition? Pre-Calculus?? Very confused!

50-e^-.02x=200

Force of 90lb acts on An object at an angle of 55 degrees. A 2nd force of 100lbs acts in object at angle of -60 degrees. Find direction & magnitude of force

Find direction angle of vector <-2,-7>. Give direction angle as an angle in [0degrees,360degrees) rounded to the nearest tenth.

If a sample of an element has a mass of 7.7grams and contains 0.285moles, what is the element?

Graphing Trig. Functions & Inverses

I'm not sure which law or how I'm supposed to solve this problem (law of sine or law of cosine)

I don't quite understand what I'm doing wrong with this question. Please help.

The "minute hand" of a clock is 5 inches long.

Angular and Linear velocity?

Pre Cal Question

A truck with 18-in.-diameter wheels is traveling at 55 mi/h.

Find the approximate solution to the equation by graphing an appropriate function on a graphing calculator. x² = 1.9^x. Therefore x˜__

How long does it take for a deposit of $500 to double at 7% compounded continuously?

Find all real numbers in the interval [0, 2p) that satisfy the equation. Use radian measure 11 sin ² x – sin x = cos ² x

Find the product of -4-3i and its conjugate. The answer is a+bi where

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