329 Answered Questions for the topic Algebra 2 Help

05/28/15

Algebra 2 help please??
Consider the set x= { #, $, @, ^, *}1. Find the numbers of subsets there are for set X.2. Find the number of 4- element subset of set X.I am so confused, anything helps, thank you!!!
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05/28/15

Algebra 2 help please??
Consider the set x= { #, $, @, ^, *} 1. Find the numbers of subsets there are for set X. 2. Find the number of 4- element subset of set X.   I am so confused, anything helps, thank you!!!
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05/28/15

How to find overall average?? help please
Bruce scored a 12, 18, 16, and 17 on his first four quizzes. What must his score on the fifth quiz be if he wants an overall average of 16?
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Algebra 2 Help

05/28/15

the area of a rectangle is 348 square feet. the length is 5 feet longer than twice the width. which equations can be solved to find the length and the widt
i need help  
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05/11/15

Half Life Word Problem
What is the half-life (to nearest tenth of an hour) of a substance if 100g decays to 27g in 24h?
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Algebra 2 Help

05/10/15

Help answer
3^p-5 - 3 = 27
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Algebra 2 Help

05/04/15

angle of elevation
A person starts out 17 miles from the base of a tall mountain, and looks up at a 4 degree angle of elevation to the top of the mountain. When they move 12 miles closer to the base of the mountain,... more
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Algebra 2 Help

05/03/15

I don't understand....
The indicator on a circular volume knob is located at 170 degrees. Hannah likes a song that comes on the radio and turns the knob clockwise through 4.75 rotations. What is the new position of the... more
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Algebra 2 Help

05/03/15

What is the sine of theta?
The point (-2, -3) is on the terminal side of theta in standard position. What is the sine of theta?
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Algebra 2 Help

05/03/15

Cotangents....
The cotangent of Θ is -1 and the cosine of Θ is sq. root of 2/2. What is the cosecant of Θ?
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Algebra 2 Help

04/23/15

I really need help with this Algebra 2 problem?
An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two... more
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Algebra 2 Help

04/03/15

What system of equations can be used to determine whether the paths of the boats will cross?!?!?!
A map of a harbor is laid out on a coordinate grid, with the origin marking a buoy at the center of the harbor. A fishing boat is following a path that can be represented on the map by the equation... more
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Algebra 2 Help

02/20/15

twice a number minus a second number is -1. Twice the second number added to three times the first number is 9. find the two numbers
twice a number minus a second number is -1. Twice the second number added to three times the first number is 9. find the two numbers.  System of Equations is how we are supposed to solve this word... more
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02/17/15

How do I solve this?
A computer password can use all digits (0-9) and all letters (a-z) that are case sensitive (upper and lower). How many different permutations of 5-figure passwords are there if there is no repeated... more
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Algebra 2 Help

02/02/15

f(x) = -7x2 + 9x + 9.
Select the approximate values of x that are solutions to f(x) = 0, wheref(x) = -7x2 + 9x + 9.
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02/01/15

How does using radian measure simplify finding distances around a circle compared to using degree measure?
Thank you to everyone who answers.
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02/01/15

How do I do this?
Evaluate the trigonometric by using the quadrant and the reference angle to determine the sign and absolute value.    sin(13pi/4) 
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02/01/15

Can you tell me if I did this right?
A child is riding a carousel at an amusement park. How long will it take for the child to travel through the given angle at the given angular velocity?  1.) 3 rev/min; 270 degrees   ok, this is... more
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02/01/15

Can you explain how to solve this?
A merry-go-round with the given radius turns through the given angle. How far, in feet, will a child on the edge of the merry-go-round travel? 1.) 4 feet; 270 degrees 
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01/28/15

Questions like this are going to be on my next exam and I have no idea how to do this..
Classify f(θ) of these trigonometric functions as less than, greater than, or equal to zero.    A. f(θ)=sinθ, θ is in quadrant III B. f(θ)=tanθ, θ is in quadrant II C. f(θ)=cosθ, θ in quadrant... more
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01/28/15

Can you explain how to solve this?
Jennifer is riding on a merry-go-round at a carnival that revolves at a speed of 3.3 revolutions per minute. She is sitting 7 feet from the center of the merry-go-round. If Jennifer's starting... more
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01/28/15

My older sister said I got this problem wrong but I don't understand her explanation.
In Italy, there is a large circular test track that is used to test race cars and other high-speed automobiles.   a. Suppose a similar track has a radius of 6 kilometers. Find the circumference... more
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01/27/15

I got this problem wrong on my homework.. I'm not quite sure what I did wrong.
A swing hangs from a beam 10 feet high, with the seat hanging 2 feet above the ground. In motion, the swing moves back and forth from -130 degrees to -50 degrees to the horizontal. How far forward... more
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01/19/15

I don't know how to solve this? Am I suppose to use a specific formula?
Shelby is canoeing in a river. She travels 4 miles upstream and 4 miles downstream in a total of 5 hours. In still water, Shelby can travel at an average speed of 2 miles per hour. To the nearest... more
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Algebra 2 Help

01/14/15

f(x) = x2 - 2x - 11, g(x) = 3x - 2 find the rule that represents the expression f(g(x))
what's the rule in this case?? please help!!
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