10/21/19

What are the constraints for this problem?
Webster Instruments is opening a new music shop in which they sell guitars and basses. The store is small, so they can buy no more than 50 instruments total. The store’s cost to buy a guitar in... more
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10/21/19

Find the parabola with equation y = ax2 + bx whose tangent line at (1, 1) has equation y = 6x − 5.
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10/19/19

calculus optimization
A box of volume 252 m3 with square bottom and no top is constructed out of two different materials. The cost of the bottom is $40/m2 and the cost of the sides is $30/m2 . Find the dimensions of the... more
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10/17/19

Find a so that f(x) = ax2 + 6x + 3 has two real roots.
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10/17/19

find the points of intersection of the graphs of the functions. (round your answers to three decimal places.) f(x) = 0.4x^2 − 1.2x − 1; g(x) = −0.1x^2 + 0.8x + 8.5
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10/16/19

if f(3)=4, f'(3)=-4 g(3)=2, g'(3)=-6, find F'(3) if F(x)=cuberoot of (f(x)g(x))
I am very confused as to how to find the derivative of (f(x)g(x))^(1/3)
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10/13/19

Differentiate the following functions and simplify. (Might need to use logarithmic properties if necessary
1) f(x) = e^√(x-5) cos(2x2+4) / ln(x-3)2) y = ln(5x6esec(4x) / 3√(x4-7) (x2+6)8)
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10/08/19

Calculating Volume Of a Region via Washer
Calculate the volume obtained by rotating the region in the first quadrant bounded by x2+y2=0, y=x, and x=0.I understand how to use shell method with this question (radius: x, height: (1-x2)1/2-x,... more
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10/08/19

Finding an equation for a tangent line
Problem: Find an equation for the line that is tangent to y = 2-x / 2+x at (1, 1/3). I am not sure how to begin with this problem, but I believe I have to find the slope, then plug that into the... more
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09/26/19

How to find an interval that contains a solution?
These are similar to some problems I was assigned for homework ad I tried googling them, but I don't think I even understand what it is asking me For each of the following equations, find an... more
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09/24/19

An isosceles trapezoid ABCD has bases AD=17 cm, BC=5 cm, and side AB=10 cm .Through the vertex B there is a line, which bisects diagonal AC and intersects AD at point M. What is the area of BDM?

An isosceles trapezoid ABCD has bases AD=17 cm, BC=5 cm, and side AB=10 cm. Through the vertex B there is a line, which bisects diagonal AC and intersects AD at point M. What is the area of a... more
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09/24/19

Where does the Quadratic Formula come from?
A. Start with the standard form of a quadratic equation.ax2 + bx + c = 0B. Complete the square.C. Simplify.
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09/23/19

Vertical Translations!
Find an equation for a cosine function having an amplitude of 2, a period of 2pi, horizontal shift of pi/2 to the right, and a vertical shift of -5.
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09/19/19

Find the derivative of each of the following functions using the definition of derivative

a) f(x)=ax+b (Assuming that a and b are non zero constants.)
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09/19/19

What is the slope-intercept form of the line whose slope is 3 and that passes through the point (-3,7)?
I have y=3xt... I can't figure out how to get b. Please help!
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09/18/19

Find the derivative of each of the following functions using the definition of derivative
a) f(x)=ax+b (Assuming that a and b are non zero constants.)b) f(x) = (2x)/(x+1)
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09/17/19

Determine which one of the following rules for continuity is violated at -5
Let f(x)= 3x + 18 if x < -5 sqrt(x+14) if x > -5 -2 if x = -5
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09/15/19

What is the equation that passes through the point (1/2,-2/7) and is perpendicular to the line 3x-6y=1
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09/12/19

what is (4+3i)^4
I got -527+336i but I can't figure out how to get that answer.
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09/11/19

Find the points on the given curve where the tangent line is horizontal or vertical
Assume (0≤θ≤2π). Enter your answers as a comma-separated list of ordered pairs.)r=e^(θ)  horizontal tangent     (r, θ) =    vertical tangent     (r, θ) = Apparently I keep getting this... more
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09/11/19

A striaght line y=mx+c is to be reflected about the line y=x. State tve equation of the image of line y=mx+c in the form of y=kx+l.
M =/=(0,-1)Express answer k and l in terms if m and/or c
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09/10/19

How do i find the constraint inequality??????

here is the problemYou grow and sell tomatoes and green beans. It costs $20 to grow a bushel of tomatoes and it takes 3 sq. yards of land. It costs $10 to grow a bushel of beans, and it takes 6... more
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09/10/19

Pre Calculus 11 - Trigonometry
P and Q are both points on the unit circle. The standard angle of P is 45° and the standard angle of Q is 150°. Find the length of the chord PQ. Round your answer to 2 decimal places.
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09/10/19

How to get the answer two only using the numbers 1 4 5 9?
And you can't add numbers to make double digits, for example you can't put 1 and 4 to make 14.
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09/05/19

Find an​ nth-degree polynomial function with real coefficients satisfying the given conditions
n=3 3 and 4i are zeroes f(1)=102
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