1,063 Answered Questions for the topic Pre-Calculus

Pre Calculus Calculus Trigonometry

01/07/17

Find the point on the terminal side of 0=3pi/4 that has an x coordinate of -1. Thank you for your help and explanation.
I would greatly appreciate an explanation so I can understand how to solve.  I don't want just the answer.  Thank you for your help.
Follows • 3
Expert Answers •2
Pre Calculus

12/19/16

Give an equation for the unit circle, that is, the circle with radius 1 centered at the origin.
Give an equation for the unit circle, that is, the circle with radius 1 centered at the origin.
Follows • 2
Expert Answers •1
Pre Calculus Algebra 2

12/17/16

Cramer Rule; Matrices
Solve the following equations using cramer's rule.    -3x+4y-x=-5 x-y-z=-8 y+z=3   Solve for x
Follows • 2
Expert Answers •1
Pre Calculus

12/12/16

I need help with my test review questions.
13. A safety regulation states that the maximum angle of elevation for a rescue ladder is 72°. A fire department’s longest ladder is 110 feet. What is the maximum safe rescue height? 14. From the... more
Follows • 3
Expert Answers •2
Pre Calculus Algebra

12/03/16

A=Vf-Vi/tf-ti solve for tf
The f's and the i's are subscripts. 
Follows • 2
Expert Answers •1
Pre Calculus

11/25/16

You have to read 5 out of the 42 books on the summer reading list. In how many different ways can you choose five books?
(Please explain how you got your answer) I need help.
Follows • 2
Expert Answers •1
Pre Calculus

11/06/16

An airplane flying at 600 miles per hour has a bearing of 52°. How far does it travel?
An airplane flying at 600 miles per hour has a bearing of 52°.After flying for 1.5 hours, how far north and how Far East has the plan traveled from it departure point?
Follows • 3
Expert Answers •1
Pre Calculus

10/28/16

Word Problem
A box with no top is fashioned from a 45 inch by 24 inch piece of cardboard by cutting out congruent squares form each corner of the cardboard and then folding the resulting tabs. Let x denote the... more
Follows • 2
Expert Answers •1

10/26/16

A self-serve Frozen Yogurt shop offers 10 toppings. How many different combinations of toppings are possible, assuming that each customer chooses at least one?
A self-serve Frozen Yogurt shop offers 10 toppings. How many different combinations of toppings are possible, assuming that each customer chooses at least one? Note: This problem is asking how many
Follows • 3
Expert Answers •2
Pre Calculus

10/08/16

Pre-Calculus
If f(theta) = cos theta and f(a) = 1/4, find the exact value of f(-a)
Follows • 4
Expert Answers •3
Pre Calculus

10/05/16

What is the functions restricted domain and what is its inverse function
The function f(x)=(x=2)^2-1 is not one-to-one. Restrict the function's domain an find its inverse. What is the function's restricted domain and what is its inverse function?   I think the... more
Follows • 2
Expert Answers •1
Pre Calculus

10/04/16

89 cm wore. Cut and bent into square and circle. Circumference of circle when area is minimum.
You have a wire 89 cm long. You wish to cut it into two pieces. One poece will be bent into the shape of a square. The other piece woll be bent into the shape of a circle. Let A represent the total... more
Follows • 2
Expert Answers •1

10/02/16

explain how the graph of y=4(cube root of (x+2))-5 can be obtained by transforming the graph of y=cube root of x
Need help explaining how to do this, I am not understanding how exactly the transformation can be explained
Follows • 2
Expert Answers •1
Pre Calculus

09/28/16

what were the original dimensions of th cardboard??
A box is created from a sheet of cardboard with equal squares cut out of each corner. The square cut from the corner were 3 inches on each side in the volume of the box is 24 in.³ If the length of... more
Follows • 2
Expert Answers •1
Pre Calculus

09/20/16

Find the first term and common difference
The arithmetic sequence a1, a2,...a100 has a sum of 15,000. Find the first term and the common difference if the sum of the terms in the sequence a3, a6, a9... a99 is 5016. Please include solution.
Follows • 4
Expert Answers •3
Pre Calculus

09/19/16

I don't know how to begin this question
an acrylic container holding 1.5 gallons can only hold a liquid with a maximum of 7% alcohol content otherwise the container will become scratched. Wishing to make sangria you must use two bottles... more
Follows • 2
Expert Answers •1
Pre Calculus

09/11/16

Simplify the 4th root of 192x^6y^9
I need hepl simplifying this please
Follows • 2
Expert Answers •1
Pre Calculus

08/25/16

5^log5 (x) + log5 (2) =5 solve for x
Don't know exactly how to do this problem.
Follows • 3
Expert Answers •2
Pre Calculus

08/25/16

5x-(7x-4)-2=5-(3x+2)
5x-(7x-4)-2=5-(3x+2)
Follows • 2
Expert Answers •1
Pre Calculus

07/29/16

What is Kepler's second law?
What is Kepler's second law?
Follows • 3
Expert Answers •2
Pre Calculus

07/26/16

A ball is dropped from a height of 15 feet. If it rebounds 2/3 of the previous distance, how far does the ball travel vertically?
A ball is dropped from a height of 15 feet. If it rebounds 2/3 of the previous distance, how far does the ball travel vertically?   *sequences and series*
Follows • 3
Expert Answers •2
Pre Calculus

07/23/16

a 19ft ladder reaches the top of the building, making a 43.8 degree angle with the building. How tall is the building?
 a 19ft ladder reaches the top of the building, making a 43.8 degree angle with the building. How tall is the building?
Follows • 2
Expert Answers •1

06/20/16

if the radius of the circle in the figure is 20 cm and length equals 85 cm, what is the radian measure of angle
If the radius of the circle in the figure is 20 cm and length equals 85 cm, what is the radian measure of angle?
Follows • 2
Expert Answers •1
Pre Calculus Math Precalculus Math Help

05/26/16

Pre Calculus
Which of the answer choices has matrix multiplication defined?A B C D⌈1 2⌉ ⌈5 6 7⌉ ⌈-1 2 3⌉ [5 9 7] ⌊3 4⌋ ⌊8 9 0⌋ l8 -4 0l ..................⌊6 7 1⌋ a) ACb) BAc) ABd) CD
Follows • 2
Expert Answers •1

05/26/16

Pre Calculus
Determine the quadrant when the terminal side of the angle lies according to the following conditions: sin (t) < 0, csc (t) > 0.a) Quadrant Ib) Quadrant IVc) Quadrant IId) Quadrant III
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.