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Beecher, Penna, Bittinger - Precalculus (Homework)

James Finch

Math - College, section 1, Fall 2010

Instructor: Dr. Friendly

Current Score : 3 / 11

Due : Tuesday, August 24, 2010 19:00 EDT

About this Assignment

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Question
Points
1 2 3 4 5
0/1 3 0/3 0/3 0/1
Total
3/11 (27.3%)

Description

Here are some textbook questions from Precalculus 3/e by Beecher, Penna, and Bittinger published by Addison Wesley. Click here for a list of all of the questions coded in WebAssign.


Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.



1. –/1 points Notes Question: BPBpc3 1.1.114.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
Find the equation of the circle. Express the equation in standard form.
0 =
Enter a mathematical expression.
Click here to preview your answer.
Click here for help with symbolic formatting.



2. 3/3 points All Submissions Notes Question: BPBpc3 1.2.024.
Question part
Points
Submissions
1 2 3
1 1 1
1/50 1/50 1/50
Total
3/3
 
A graph of a function is shown. Find the indicated function values.
g(-4) =
Enter a number.
Your answer is correct.
g(1) =
Enter a number.
Your answer is correct.
g(2) =
Enter a number.
Your answer is correct.



3. 0/3 points All Submissions Notes Question: BPBpc3 1.2.034.
Question part
Points
Submissions
1 2 3
0/1 0/1 0/1
2/50 0/50 0/50
Total
0/3
 
Find h(0), h(7), and h(-x). (If the answer is undefined or does not exist, type DNE.)

h(x)=5 x + sqrt(x^2-6) .

h(0) =
Answer is not case sensitive.
Your answer is incorrect.
h(7) =
Enter a number.

h(-x) =
Enter a mathematical expression.
Click here to preview your answer.
Click here for help with symbolic formatting.


4. –/3 points Notes Question: BPBpc3 1.6.092
Question part
Points
Submissions
1 2 3
0/1 0/1 0/1
0/50 0/50 0/50
Total
0/3
 
A stone is thrown into a pond, creating a circular ripple that spreads over the pond in such a way that the radius is increasing at the rate of 5 ft/sec.

(a) Find a function r(t) for the radius in terms of t

r(t) =
Enter a mathematical expression.
Click here to preview your answer.

(b) Find a function A(r) for the area of the ripple in terms of the radius r.

A(r) =
Enter a mathematical expression.
Click here to preview your answer. Check the syntax of your response. (Help)

(c) Find (A r) (t).

(A r) (t) =
Enter a mathematical expression.
Click here to preview your answer. Check the syntax of your response. (Help)


Click here for help with symbolic formatting.

5. –/1 points Notes Question: BPBpc3 2.5.100.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
Solve.
1/F=1/m+1/p , for m

(A formula from optics)

m =
Enter a mathematical expression.

Click here for help with symbolic formatting.
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