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Post New Question
All Questions
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135349 Questions
0
220
1
Precalc question
Suppose the "parent" fuction is f(x)=cos(x) and the "child" function has an amplitude of 8, a period of 2pi/3, and a phase shift (horizontal translation of pi/3 units to the right. Give the equation for the "child" function. Use the standard form for translations
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CPhill
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Guest
Apr 26, 2015
0
852
2
what are the points of discontinuity? are they all removable? y= (x-5) / x^2 - 6x + 5
what are the points of discontinuity? are they all removable? y= (x-5) / x^2 - 6x + 5
CPhill
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Guest
Apr 26, 2015
0
661
2
Reference Angles
a) sec(3pi/4) reference angle: pi/4 and Value is -2/sqroot2
but how?
b)cot(-2pi/3) reference angle: pi/3 and Value is 1/ sqroot 3
read more ..
Melody
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Guest
Apr 26, 2015
0
212
1
Precalc
Given csc(x)=4. find sec(pi/2-x)
answer is 4 but how?
CPhill
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Guest
Apr 26, 2015
0
354
3
An observer on a cliff top 57 m high observes a ship at sea. The angle of depression to the ship is 15°. The ship sails towards the cliff, a
An observer on a cliff top 57 m high observes a ship at sea. The angle of depression to the ship is 15°. The ship sails towards the cliff, and the angle of depression is then 25°. How far, to the nearest metre, did the ship sail between sightings?
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CPhill
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Guest
Apr 26, 2015
0
978
1
Simplify the trigonometric expression 1 / 1 + sin Θ + 1 / 1 - sin Θ
Simplify the trigonometric expression 1 / 1 + sin Θ + 1 / 1 - sin Θ
CPhill
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Guest
Apr 26, 2015
0
180
1
Pre-calc question
A right triangle has an acute angle x such that cot(x)=5. find csc(x).
I know the answer is sqroot of 26. Though I dont understand how
CPhill
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Guest
Apr 26, 2015
0
1070
2
Consider the polynomial $$ f(t) = t^3 + 6t^2 + 12t + 8. $$ What are the coefficients of $f(t-1)$? Enter your answer as an ordered list of fo
Consider the polynomial $$ f(t) = t^3 + 6t^2 + 12t + 8. $$ What are the coefficients of $f(t-1)$? Enter your answer as an ordered list of four numbers. For example, if your answer were $f(t-1) = t^3 + 3t^2 - 2t + 7$, you'd enter (1,3,-2,7). (This is not
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CPhill
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Guest
Apr 26, 2015
Apr 25, 2015
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751
4
How many entries of Pascal's triangle are equal to 91?
How many entries of Pascal's triangle are equal to 91?
CPhill
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Guest
Apr 25, 2015
0
396
5
what is 7-x+4x-3-9x
what is 7-x+4x-3-9x?
HeatherF
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Guest
Apr 25, 2015
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2001
2
what values for Θ (0 < Θ < 2 pi) satisfy the equation? cos Θ- tan Θ = 0
what values for Θ (0 < Θ < 2 pi) satisfy the equation? cos Θ- tan Θ = 0
Alan
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Guest
Apr 25, 2015
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232
1
7x+5z=4+8y how do u solve for y
7x+5z=4+8y how do u solve for y
CPhill
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Guest
Apr 25, 2015
0
635
1
simplify the trigonometric expression cot 0 tan 0
simplify the trigonometric expression cot ø tan ø
CPhill
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Guest
Apr 25, 2015
+5
562
12
Good luck with this one!
A woman has two rugs of the same material, one 10 feet by 10 feet and one a long runner 8 feet by 1 foot. How can she make a single continuous cut in the 10 foot by 10 foot rug, so as to form two pieces which, when combined with the 8 foot by 1 foot rug
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Guest
Apr 25, 2015
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307
3
-3 multiplied by -3 is 9 but when i do -3 squared it comes up as -9?
-3 multiplied by -3 is 9 but when i do -3 squared it comes up as -9?
Alan
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Guest
Apr 25, 2015
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231
3
What Minutes?
How much Minutes are used to get 300 by 9?
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Guest
Apr 25, 2015
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278
1
80 times 5 over 8
80 times 5 over 8
TitaniumRome
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Guest
Apr 25, 2015
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762
9
What happens when you divide by zero?
What happens when you divide by zero?
Alan
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Guest
Apr 25, 2015
0
256
4
what is the inverse of a 3x3 matrix?
what is the inverse of a 3x3 matrix?
TitaniumRome
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Guest
Apr 25, 2015
+6
563
6
Brothers and sisters I have none, but this man's father is my father's son. Who is "this man?"
Brothers and sisters I have none, but this man's father is my father's son. Who is "this man?"
TitaniumRome
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Guest
Apr 25, 2015
0
621
1
Write a function to model the area of a round plate. Evaluate the function for a plate of radius 5.5 in.
The area of a round plate is a function of the radius of the circle. Write a function to model the area of a round plate. Evaluate the function for a plate of radius 5.5 in.
Alan
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Guest
Apr 25, 2015
0
439
1
(a+b+c)²=a²+b²+c² Proved that 1/a+1/b+1/c=0
(a+b+c)²=a²+b²+c²
Proved that 1/a+1/b+1/c=0
Alan
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Guest
Apr 25, 2015
0
626
1
+1781
A certain coin is weighted such that the chance of flipping heads is $\frac{1}{3}$ and the chance of flipping tails is $\frac{2}{3}$. Suppos
A certain coin is weighted such that the chance of flipping heads is $\frac{1}{3}$ and the chance of flipping tails is $\frac{2}{3}$. Suppose that we win $\$3$ if we flip a heads on a coin toss, but lose $\$2$ if we flip tails. What is the expected value,
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Alan
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Mellie
Apr 25, 2015
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