477 Answered Questions for the topic Precalculus Homework
Precalculus Homework
06/16/17
Find exact solutions
find exact solutions on the interval 0≤θ≥2Π. 4cos2θ + 4cosθ - 3 =0
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
05/31/17
A small swimming pool can be filled by two hoses together in 1 hr and 12 mins. The larger hose alone fills the pool in 1 hr less than the smaller hose.
How long does it take the smaller hose to fill the pool?
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
05/28/17
Solve equation by using an appropriate substitution. Check your answers. x^4-7x^2+12=0
Basic concepts and skills
Precalculus Homework
05/28/17
Solve equation and check answer: r+11=6 square root r+3
Basic Concepts and skills
Precalculus Homework
05/28/17
solve equation by multiplying both sides by the LCD. 1/x +2/x+1 +3/x+2=0
Basic concepts and skills
Precalculus Homework
05/28/17
Find the real solutions of the equation by factoring: x^3-36x=16(x-6)
Basic Concepts and skills
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
05/22/17
Find an integer such that the sum of twice the square of the integer and the integer itself is 55.
Finding the integers
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
05/22/17
The diagonal of a square tile is 4 inches longer than its side. Find the length of the side.
Applying the concept- Dimensions
Follows
•
3
Expert Answers
•2
![]()
![]()
Precalculus Homework
05/22/17
The price of gas increased by 20% from July to August, while your consumption of gas decreased by 20% from July to August. What is the percentage change in gas?
a. No change
b. 5% decrease
c. 4% increase
d. 4% decrease
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
05/22/17
The sum of three consecutive even integers is 42. Find the integers.
Numbers- applying the concept
Follows
•
2
Expert Answers
•1
![]()
05/21/17
Ms. Jordon invested $4900, part at 6% interest and rest at 8%. If the yearly interest on each investment is the same, how much interest does she receive at year
Applying the Concepts
Follows
•
2
Expert Answers
•1
![]()
05/21/17
A trapezoid has an area of 35 square centimeters. Assuming that one base is 9 centimeters and the other base is 11 centimeters, find the height of the trapezoid
Applying the Concepts
Precalculus Homework
05/17/17
Find the sum of the series. 6+18+54+162+⋅⋅⋅+6(3^9)=
need help finding the sum of the series
Precalculus Homework
05/17/17
Write the sum of the following series using sigma notation. 44+37+30+23+16+9 S=∑n=0af(n), where a=Entry field with correct answer 5 and f(n)=Entry field wi
I have part a i just need help with part b thanks in advance for any help i get
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
05/14/17
A person leaves her home and runs 6 miles due north. Then, she turns through the angle α=15∘ east of north and runs 5 miles in the new direction. How many mile
how many miles?
Follows
•
2
Expert Answers
•1
![]()
05/11/17
Optimization problem? Please help!!!
Given two numbers with a difference of 14, find the minimum for the sum of 4 times the larger number and the square of the smaller number.
Follows
•
3
Expert Answers
•2
![]()
![]()
Precalculus Homework
05/09/17
Perform the operation. Express the answer in reduced form. f(x)=2x2+x+62 Write your answer in the form of the ratio of polynomials p(x)q(x), where p(x)q(x) is
simplifiest form
Precalculus Homework
05/09/17
Partially correct answer. Your answer is partially correct. Try again. Describe in words the long-run behavior as x→∞ of the function y=2x3-200x2-4. W
what does the graph resemble
Precalculus Homework
05/09/17
Determine the long-run behavior of the rational function. 1x+1+4xx+6 As ∞ x→∞, 1x+1+4xx+6→Entry field with incorrect answer . As ∞ x→-∞,
looking for the long run behavior
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
05/09/17
Find a possible formula for a polynomial g with the given properties. g is fourth degree, g has a double zero at x=2, g(5)=0, g(−3)=0, and g(0)=2. Enter th
im looking for the formula
Precalculus Homework
04/24/17
Make the trigonometric substitution x = a tan θ for −π/2 < θ < π/2 and a > 0
Simplify the resulting expression: x^2/sqrt(a^2+x^2).
I actually have no idea how to go about solving this at all. If anyone could be kind enough to explain this to me step by step, I'll be...
more
Follows
•
3
Expert Answers
•2
![]()
![]()
Precalculus Homework
04/24/17
What expression is equal to tan(arccos(2x))?
I feel like the answer is sqrt(1-4x^2)/2x (The square root is only over the 1-4x^2). I'm just asking for confirmation because I only have a limited amount of tries to submit a problem and I want to...
more
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
04/24/17
Find all exact solutions of the equation tan(3x)=sqrt3 in the interval [0,π)
I got the answer of π/9, but I'm not so sure about it. I'm not the strongest in this unit so far so any explanation would be greatly appreciated.
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
04/24/17
Find all exact solutions of the equation tan(x)=-1 in the interval [0,2π]
I got the answer of -π/4 +- πn and -3π/4 +- πn. Is this the correct answer? I'm asking because I think it's right, but I only have a limited number of tries to submit it.
Follows
•
2
Expert Answers
•1
![]()
Precalculus Homework
04/06/17
Write the equation as a function of x in the form y = a sin(bx + c) for a > 0, b > 0, and the least positive real number c.?
(http : // www . webassign . net/waplots/5/9/3db62208ecce8388e36f5fcdec8fe3.gif) image here
I know that the amplitude is 5 and the period is 3pi (I think, correct me if I'm wrong), but how do I...
more
Follows
•
2
Expert Answers
•1
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.