2,195 Answered Questions for the topic Pre Calculus
Pre Calculus
02/12/21
Pre calc help please!!
A tree is 160 feet tall. If Frances is standing 74 feet from the tree, what is the angle of elevation from the ground where Frances is standing to the top of the tree? Round to the nearest tenth.
02/12/21
PRE CALC AB - A decaying radioactive ore has a half life of 1710 years.
A decaying radioactive ore has a half life of 1710 years.a) Write the exponential decay function for a 27 gram sample. b) Find the amount remaining in 3000 years.
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02/12/21
Pre-Calc AB P=1500/1+8e^0.15t
A wildlife organization released a group of animals that are an endangered species into a preserve. The equation below models the population, P, of the species t months after the initial...
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02/12/21
cos(θ) − sin(θ) write the given sum as a product. You may need to use an Even/Odd or Cofunction Identity.
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Pre Calculus
02/12/21
How much would your profit or loss be if you sell 10 bags ?
You decide to start a small business selling monogrammed handbags with a friend . Your initial investment in equipment is $300 . The better business Bureau helps you determine that the profit (y)...
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02/11/21
write the given sum as a product. You may need to use an Even/Odd or Cofunction Identity. sin(2θ) − sin(7θ)
i have the answer it is -2Cos(9/2θ) Sin(5/2θ) i just dont know how to show my work any help would be awsome. thx alot
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02/11/21
write the given product as a sum. You may need to use an Even/Odd Identity. cos(2θ) cos(6θ)
i have the answer and the answer is cos(4θ)+cos(8θ) /2 and they are both over 2 i just have no clue how to show my work any help would be amazing thx
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Pre Calculus Pre Calculus
02/11/21
Find f ∘ g and g ∘ f. f(x) = x3, g(x) = x2/3
(a) f∘ g =(b) g ∘ f=Find the domain of each function and each composite function. (Enter your answers using interval notation.)domain of f =domain of g =domain of f ∘ g =domain of g ∘ f =
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02/10/21
use the given information about θ to find the exact values of sin(2θ) , sin (θ/2), cos(2θ) ,cos (θ/2),tan(2θ) ,tan(θ/2) of cos(θ) = 3/5 where 0 < θ < π/2
Hello i am stuck on this problem where i have to find all the values i listed with cos(3/5) and it lies in the first quadrant
02/10/21
find x: 3tanx = -1
solve on [0, 360)answer must be an exact value, if not round to the nearest hundredth
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02/10/21
If sec ( x ) = 15/11 (in Quadrant-I), find cos ( 2 x ) =
can you find the answer to 4 decimals? any help is awesome :)
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02/10/21
If sin α = 0.865 and cos β = 0.272 with both angles’ terminal rays in Quadrant 1, find the values of (a) sin ( α + β ) = and (b) cos ( α − β ) =
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Pre Calculus
02/09/21
if csc theta cos theta = 3 find the value of tan theta
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02/09/21
Describe the transformation necessary to transform the graph of f(x) into that of g(x)
F(x)=x^2G(x)=-(x-3)^2
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Pre Calculus
02/06/21
Form a polynomial of degree 5 having the following zeros. 3 multiplicity of 3 and 1+3i. Leave i’m factored form.
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Pre Calculus
02/04/21
A biologist wants to know the width w of a river
Need to find width of a river with angle of 52 degrees
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02/04/21
If f(x)=3x^2+4x+5, what must the value of k equal so that the graph of f(x-k) will be symmetric to the y-axis?
Choices:(a) -4(b) -4/3(c) -2/3(d) 2/3(e) 4/3
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02/04/21
A third degree polynomial has the following three unique solutions: 2, 3 – 2i and k.
a. What is the value of k?b. What are the x & y intercepts of this polynomial?
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Pre Calculus
02/04/21
How to find degree of angle when given radius and arc length
If I'm given a slice of pizza with a radius of 52 inches and crust (arc length) equal to 26pi, how do I find the angle in degrees
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Pre Calculus
02/03/21
Find the vertices of the ellipse centered at the origin with eccentricity e=1/5 and foci at (−4,0)and (4,0).
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Pre Calculus Precalculus
02/03/21
QUESTION IS IN THE DESCRIPTION
A city's transportation system is in financial difficulty and needs to raise its commuter rail fares. The current round trip fare is $6.00 and has 15,000 riders daily with half of them parking in...
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Pre Calculus
02/02/21
numerical answers
The population of a city was 234000 in 1989 and in 2003 was 237000. Considering that the increment of the population was linearly, what was the growth per year of the population in such city?(...
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Pre Calculus
02/02/21
Pre calc help please!!
1) Use the following series to find the following below: 25 + 18 + 11 +.... a) Find the sum of the first 22 terms in the series. b) Write the series in sigma notation...
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Pre Calculus
02/02/21
Pre calc please!!!!
Expand the following polynomial using Pascal’s Triangle: (2x-7y)^4
Pre Calculus
02/02/21
Pre calc help please!!
Classify each sequence and series as arithmetic, geometric, or neither:
a) 1/625 + 1/125 + 1/25 + 1/5 +...
b) -11 – 2 + 7 + 16 + 25 + 34 + …
c) 420, 84, 16.8,...
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