01/14/20

Rational Zeros of Function
find all the rational zeros of these functionsx3 - 10x2 + 23x - 14x3 + 6x2 + 9x + 4
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01/12/20

Vector and parametric equation
1) What is the vector and parametric equation for: the horizontal line through (pi,e)2) At time t, the position of an object moving with constant velocity is given by the parametric equations... more
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01/08/20

roots of polynomial
if x = -1 is a root of x3 + 4x2 - x - 4 = 0, use synthetic division to factor polynomial completely, and list all real solutions of equation
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12/26/19

Please Help With This Trig Problem
5(cos 220° + i sin 220°)/2(cos 115° + i sin 115°)A. 5/2(cos 105° + i sin 105°)B. 2/5(cos 105° + i sin 105°)C. 5/2(cos 335° + i sin 335°)D. 10(cos 335° + i sin 335°)
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12/25/19

Trig Problem Please Help
A car travels in the direction of 135°. What is its compass heading?(In Degrees)When I did the problem, I got 315°. Is that correct?
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12/15/19

What is the slope of a line passing through points (-7,5) and (5,-3)?
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12/07/19

Word Problem Solving Equation
A sound wave is given the following equation:y= 8 sin(512πt) where t= time in seconds.How many cycles will occur between t=2 and t=3.5 seconds?
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12/06/19

Algebra Problem:
Simplify: (3√12√12)(A) 12(2/3)(B) 2(32/3)(C) 2√3(D) (2/3√12)(E) none of theseFor this I got (C) 2√3, is this correct?
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12/06/19

Finding an inverse function
Determine whether function has an inverse function, if it does, find the inverse function. f(x) = x4f(x) = 3x + 5
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12/02/19

Comparing Functions
Congratulations! You have just been offered a part time work/study job for all four years of college. They will pay you a starting salary of $6000 with a raise of $200 per year. Type L if the... more
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11/27/19

Expected Value- Probability
A company estimates that 1% of their products will fail after the original warranty within 2 years of the purchase, with a replacement cost of $500.If they want to offer a 2 year extended... more
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11/03/19

Probability of coins
If you flip 4 coins( at the same time ), write the sample space and answer the following questions:a. What is the probability of all 4 coins landing on heads?b. What is the probability of at least... more
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10/26/19

Using the given information write the equation of parabolas:
a). the parabola has vertex at the origin and directrix x = −5.b). the parabola has focus (3, 0), and directrix y=3PLEASE HELP AND THANK YOU IF YOU DO!!
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10/19/19

Write both series as a summation in sigma notation.
a). 3+2+5/3+3/2b). 5+8+11+14+17+20PLEASE HELP ME AND THANK YOU IF YOU DO!!!!
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10/19/19

Using the information given below write the equation of the hyperbola:
a). The hyperbola has vertices (–2, 9) and (–2, 3) and foci (–2, 13) and (–2, –1).b). The transverse axis of the hyperbola lies on the line y=–3 and has length 6; the conjugate axis lies on the... more
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10/01/19

Emma pats $108 every six weeks for tennis lessons. What is the price per year for tennis lessons
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09/18/19

You purchase an item that has a 7% sales tax. Write an expression that represents the cost of the item in simplest terms. What is the coefficient? (decimal answer)
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07/17/19

pre calc question
A cylinder is inscribed in a sphere of radius 8 inches. Write an equation for the volume of the cylinder as a function of h. Find the value of h that maximizes the volume of the inscribed cylinder.... more
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07/13/19

Does the ``??`` operator use shortcircuiting?
Does the `??` operator in C# use shortcircuiting when evaluating? var result = myObject ?? ExpressionWithSideEffects(); When ``myObject`` is non-null, the result of... more
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07/12/19

Limit of partial sums?
So I'd like to calculate limit of partial sums, where `a_n` is `sp.Lambda(x, 1/x * sp.factorial2(2*x-1)/sp.factorial2(2*x))`. I tried this: sp.limit(sp.summation(a(i), (i,1,n)), n,... more
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07/11/19

solve the equation for the indicated variable.

B= 690y/h^2 for y
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07/09/19

(8,-7) (6,3) what is its standar and general form?
The center of the diameter of the circle are (8,-7) and (6,3)
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06/07/19

Write the equation of the line whose slope is undefined and passes through the point (-4,3).
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05/29/19

How can I get more exact decimal values in Python?
from math import sqrt a=1e-8 b=10 c=1e-8 x1 = ((-b)-sqrt((b**2)-(4*a*c)))/(2*a) x2 = ((-b)+sqrt((b**2)-(4*a*c)))/(2*a) print 'x1 = {}'.format(x1) print 'x2 = {}'.format(x2) ... more
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05/07/19

Vector Addition Word Problems 2
Ms. Sparks drives her car 35 miles at 15° south of west. There she drops off her math books and heads 65° south of east for 50 miles.a) Make a head-to-tail drawing of the two vectors described.b)... more
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