1,063 Answered Questions for the topic Pre-Calculus
Pre Calculus
09/11/18
Cos x= 1/3 possible x values?
If x= 1/3 what are the two possible answers between 0 and 2pi
What are the ranges to these two functions and how do you find them?
H(t) =(t^2-1)/t+1
f(n) = √(4-n^4)
Pre Calculus
09/09/18
Develop an expression that represents the area of the park
greg works as a caretaker at a park. In the fall, he rakes the leaves in the rectangular park. The length of the park is (3x+1)m. The width of the park is (2x+4)m
Pre Calculus Calculus 1
08/27/18
Write an algebraic sentence involving distance which is equivalent to the given algebraic sentence
A. |x-5|=1
B. |x+3|=5
Pre Calculus
08/22/18
Given: f(x) = x 2 + 2x + 1, find f(x + h) and simplify.
Please Help me with this ASAP!!!!
Pre Calculus Algebra 2
08/18/18
If 3x+y = k(x-3) then x=?
I need help on how you would rearrange the question in terms of x
Pre Calculus
08/08/18
How many people only ride the bus in the morning?
There are 32 people on the bus in the morning and 40 people on the bus in the afternoon. Of 20 people only ride the bus in the afternoon, how many people only ride the bus in the morning?
Pre Calculus
08/08/18
Convert the equation to polar form x^2+y^2-3y=0?
x^2+y^2-3y=0
how does this get converted into polar form?
Pre Calculus
07/25/18
( sin ( x ) ) ( tan ( x ) ⋅ cos ( x ) − cot ( x ) ⋅ cos ( x ) ) = 1 − 2 cos ^2 x
I don't know how to verify this identity. Can you explain it to me?
06/08/18
Use the Trapezoid rule to approximate
Use the Trapezoid Rule to approximate the area under the curve f(x)=2x^3-x+5 from x=5 to x=29. Use 4 trapezoids to find your approximation.
06/08/18
Estimate the area under the graph.
Estimate the area under the graph of f(x) = 1/(x+4) over the interval [-2.3} using five approximating rectangles and Right endpoints.
Rn= ----
Repeat the approximation using left endpoints.
Ln=...
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06/08/18
Approximate the area under the curve
Use the Midpoint Rule to approximate the area under the curve f(x)=x^2-3x+6 from x=4 to x=24. Use 5 rectangles to find your approximation.
Answer= ---
06/06/18
Find the coordinates of the hole:
Find the coordinates of the hole of
f(x) = x+1/x^2-4x-5
Show all work.
06/03/18
Derivative Equations
Let f(x)=x^3+3x^2-144x+1
on what interval is f increasing (including the endpoints in the the interval)? Interval of increasing = ----
On what interval is f decreasing (including the...
more
06/02/18
Derive the Equation
Let y=x^7-4x^5+8x^3-2x-7
Then y(2) is ---
Then (dy)/(dx) is ---
(d(2))/(dx) is ---
The second derivative of y is ---
and y''(2) is -----
Pre Calculus
06/01/18
A private plane is traveling due east at a rate of 160 mph. A south wind is blowing 30 mph. What is the actual velocity of the plane.
Pre-calculus
Pre Calculus
06/01/18
Find the magnitude and direction angle for the vector v=6 cos 137 degreesi+6 sin 137 degrees j.
Pre-calculus
05/07/18
How do I determine c1/c2 based on the values below?
C1= 4/3 ( cos 5pi/4+ i sin 5pi/4)
C2=3 (cos pi/4+ i sin pi/4)
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