20,417 Answered Questions for the topic Algebra

Algebra

07/15/21

If y^2=x is not a function, how do we find domain and range of that function? But I also saw from a book which found the domain of y = (x)^1/2
Follows • 1
Expert Answers •1
Algebra Math Geometry

07/15/21

Mixture word problem
A chemical company makes two brands of antifreeze. The first brand is 70% pure antifreeze, and the second brand is 90% pure antifreeze. In order to obtain 120 gallons of a mixture that contains 75%... more
Follows • 1
Expert Answers •1

07/15/21

Show that,(cos4x-cos2x)/2sin3x=-sinx for all x such that sin(3x) is not equal to zero
Follows • 1
Expert Answers •1

07/15/21

Need help. Thank you!
1. Find the error in the simplified radical process shown below. Explain the error.2. Simplify the expression from question 1 correctly. 3. Solve the equation x4 + 81 = 3831. Find the exact answer... more
Follows • 1
Expert Answers •1
Algebra

07/15/21

a train traveled 421 miles in 5.5 hours. what was the trains speed in mile per hours
Follows • 1
Expert Answers •1
Algebra

07/15/21

Rational function
Time to go shopping! You are considering two refrigerators. They are both Side by Side and 25 cu-ft. Both come with an Energy Guide estimate for the annual cost of electricity.If you plan on... more
Follows • 1
Expert Answers •1
Algebra

07/15/21

Polynomial Question

For a certain company, the cost for producing x items is 60x+300 and the revenue for selling x items is 100x−0.5x2. The profit that the company makes is how much it takes in (revenue) minus how... more
Follows • 1
Expert Answers •1
Algebra Linear Algebra

07/14/21

find a vector a that has the same direction as <-8,9,8> but has a length of 3
find a vector a that has the same direction as <-8,9,8> but has a length of 3
Follows • 1
Expert Answers •1
Algebra Linear Algebra

07/14/21

suppose B=(-3,-6,-2) and AB->= <4,-11,4> then A=?
suppose B=(-3,-6,-2) and AB->= <4,-11,4> then A=?
Follows • 1
Expert Answers •1
Algebra Linear Algebra

07/14/21

suppose B= (-3,6) and AB-> = <5,5> then

suppose B= (-3,6) and AB-> = <5,5> then A=?
Follows • 1
Expert Answers •1

07/14/21

find the vector in r^3 from the point

find the vector in r^3 from the point A=(x,y,z) to B=(2,-8,1)
Follows • 1
Expert Answers •1
Algebra Math

07/14/21

Find the equation of a line parallel to y = -3x + 2 and goes through the point (-4, 2).
Follows • 1
Expert Answers •1

07/14/21

Sinusoidal functions and applications
Go to document for better explanation and understanding:https://docs.google.com/document/d/1M2okhZo5Aea8YLAhm68xFrn9uYHy5tJbvyvyheMUni8/edit?usp=sharing
Follows • 1
Expert Answers •1

07/14/21

trigonometry: terminal arm diagram
Link to document for better explanation:https://docs.google.com/document/d/1Tro4wgBI5zo3K4AotB1uaUoQTJVB7pLwc--7rhDne8Y/edit?usp=sharingI will try to summarise the question here: For this part of... more
Follows • 1
Expert Answers •1

07/14/21

Exponential Functions - The domino effect
PART 2 – Exponential Functions – The Domino Effect The domino effect is a chain reaction that occurs when a small change causes a similar change nearby, which then causes another similar change,... more
Follows • 2
Expert Answers •1

07/13/21

A ferris wheel is 40 meters in diameter and boarded from a platform that is 1 meters above the ground.
A ferris wheel is 40 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel... more
Follows • 1
Expert Answers •1

07/13/21

A 28 -ft ladder leans against a building so that the angle between the ground and the ladder is 79 ∘ .
A 28-ft ladder leans against a building so that the angle between the ground and the ladder is 79∘.How high does the ladder reach on the building? _____ ft
Follows • 1
Expert Answers •2

07/13/21

A ferris wheel is 25 meters in diameter and boarded from a platform that is 2 meters above the ground
A ferris wheel is 25 meters in diameter and boarded from a platform that is 2 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel... more
Follows • 1
Expert Answers •3

07/13/21

You are planning a radio tower installation.

you are planning a radio tower installation. The tower will be 100 feet tall, and it must be supported by four guy-wires that make an angle of at least 20 degrees at the top of the tower. how far... more
Follows • 1
Expert Answers •2
Algebra Math Math Functions

07/13/21

For some general function 𝑓(𝑥), explain the steps that you would use to determine the inverse f -1 (x)
Follows • 1
Expert Answers •1
Algebra Math Math Functions

07/13/21

For some general function 𝑓(𝑥), explain the steps that you would use to determine the inverse f -1 (x)
Follows • 1
Expert Answers •1
Algebra

07/13/21

In 2012 the population of a city was 5.44 million. The exponential growth rate was 1.86% per year. At what year would the population double?
Follows • 1
Expert Answers •1

07/12/21

find a formula for the sequence
Find a formula for the general term a_n of the sequence assuming the pattern of the first few terms continues.{−9/4, 11/16, −13/64, 15/256, −17/1024, ...}
Follows • 1
Expert Answers •1

07/12/21

A survey team is trying to estimate the height of a mountain above a level plain.

A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that the angle of elevation to the top of the mountain is 27∘. From a... more
Follows • 1
Expert Answers •1
Algebra Algebra 2

07/12/21

Perform the indicated operation
Perform the indicated operationg(x) = x^3+4x^2f(x) = -2x+5find (g°f)(6)
Follows • 1
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.