02/09/20

Absolute value and compound inequalities
I have to write both types of equations for the following information, solve and then graph. the temperature T of a refrigerator is at least 35°F and at most 41°F. I do not understand how to do the... more
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02/07/20

3 questions please
1 Read all choices carefully, since several answers look correct but are not: Simplify sqrt(5) / sqrt(35), rationalizing the denominator to put your answer in "simplest form." Your answer could be... more
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02/05/20

I think its D. but can you please explain the steps
A Ball thrown in the air has a height of -16t2+50t+3 What is the average rate of change for h(t) between t=o and t=2A. 36 seconds per footB. 36 feet per second C. 18 seconds per footD. 18 feet per... more
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02/03/20

ABCD is rectangle.E is the midpoint of 𝐵𝐶,F is the midpoint of 𝐴𝐵 and G is the point of intersection of 𝐴𝐸 and 𝐶𝐹.If the area of ABCD is 1260 sq units,find the area of the quadrilateral BFGE.
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01/31/20

P(6, 1) lies on the curve y =√x − 5 .If Q is the point (x,√x − 5 ), use your calculator to find the slope of the secant line PQ for the following values of x: 5.5,5.9,5.99,6.5,6.1,6.01,6.001
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01/31/20

If sin ⁡x=7/25, and 0<x<π/2, what is cos⁡(x−3π/2)?
I need help pleasee... If sin ⁡x=7/25, and 0<x<π/2, what is cos⁡(x−3π/2)?
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01/29/20

System of of equations and Matrices
Solve the following system of equations:Show full work?
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01/26/20

volumes by slicing
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis.y=0,y=cos(3x),x=π/6,x=0 about the axis y=−2
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01/24/20

Factor and cubes
find a so that x + 1 is a factor4x^5 + 3x^2 + 2x + a
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01/24/20

Cartesian equation
Vector (4,5,-1) is perpendicular to the plane that contains point A(2,9,6). Find the Cartesian equation of this plane.
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01/22/20

Synthetic Division
Use synthetic division to solve:x5 - 4x4 - 2x3 + 4x2 + x = 0
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01/15/20

I need help with integral please!
Use your graphing calculator to evaluate to three decimal places the value of Options: 0.250 2.667 1.778 -3.251
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01/13/20

need help on how to this problem
Solve for :      The lower (or only) solution for this equation is    The higher solution for this equation is    The solution     is an extraneous solution (if any).(Fill in each with an integer... more
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01/09/20

Find the area of the largest isosceles triangle that can be inscribed in a circle of radius r = 14 (see figure).
Solve for the area, and write as a function of h and then as a function of a.
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01/06/20

Please help me on calculus - integral
Use geometry to evaluate  for Options: 12.5 25 37.5 Cannot be found
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01/03/20

2 cosx -3 sinx/6cos x + 4 Sin x

Wy cant I take the denominator as t as it is and get the answer, why is it necassary to take 2 common in the denominator.If I suppose t= denominator , then the answer isnt similar to as mentioned... more
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01/02/20

Use inverse functions where needed to find all solutions of the equation in the interval [0,2pi). 8sin^2x+6cosx-9=0
This involves solving Trigonometric equations
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12/27/19

divide using long division
-3x^5+11x^4+33x^3-26x^2-36x-6/x^3+6x^2-3x-5 i forgot how this is done can you explain?
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12/25/19

We have 350 m2 of material to build a box whose base width is four times the base length. Determine the dimensions of the box that will maximize the enclosed volume.
I set up the objective equation and the constraint equation.I think the objective equation is: (4w * l) = 350I think the constraint is lwh.How would you go about solving this? You would solve for... more
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12/24/19

Calculus: Volume by Uniform Cross Section

Find the volume of the sold whose base is bounded by y=x^2/3, y=4, and whose cross sections are semicircles with diameter on base.
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12/24/19

Not sure how to do this
In a certain rectangle, a diagonal has a length of 41. The perimeter of the rectangle is 98. Find the area of the rectangle.I am not sure how to do this, if someone could give a solution, that... more
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12/24/19

Help me with this trigonometry/problem solving question.
From an observation tower that overlooks a small lake, the angles of depression of point A, on one side of the lake, and point B, on the opposite side of the lake are, 7° and 13°, respectively, the... more
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12/23/19

Polynomial problems
Find all real zeros of the polynomials and determine the multiplicity of each. (solve by factoring)f(x) = x3 - 6x2 - 9x + 54f(x) = x4 + 5x3 + 6x2
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12/19/19

Volumes by cylindrical shell method
Use the method of cylindrical shells to find the volume V of the solid obtianed by the region bounded by the given curves about the x-axis. y=x3,    y=27,    x=0  V=
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12/13/19

What amount of a 60% acid solution must be mixed with a 20% solution to produce 300 mL of a 40% solution?

What amount of a 60% acid solution must be mixed with a 20% solution to produce 300 mL of a 40% solution?
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