10/13/20

Find derivative of...
A. Suppose[g(x)^]2 + 12x = x^2 g(x) and g(4) = 12. Find g'(4). If y = 2x^3 + 5x and dx/dt = 3, find dy/dt when x = 1.
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10/12/20

Find where increasing and decreasing

For f(θ)=sinθcosθ+cosθfor0≤θ≤2πFind where f (θ) is increasing and decreasing, and where it has local max and min values.
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10/12/20

A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 25 ft/s.
A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 25 ft/s.(a) At what rate is his distance from second base decreasing when he is... more
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10/09/20

Find the volume of the solid obtained by rotating the region enclosed by the graphs of y=18−x, y=3x−6 and x=0 about the y-axis.
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10/08/20

Precalculus question
From the given equation of a parabola x2- 2x - 4y + 32 = 0 , Find the following Coordinates of the vertex Coordinates of the focus Equation of the Latus rectum I find it hard to understand when... more
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10/07/20

Help Please, I don't understand how to start this problem
The half-life of a radioactive substance is 11 days. After 20 days a sample of the substance has been reduced to a mass of 5 mg.What was the initial mass (in mg) of the sample?Using your answer... more
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10/06/20

I have to find the value of N
X3+ nx2+4nx-6 by x+3 and the remainder is -48
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10/06/20

I need help solving this algebra question

The larger of two numbers is 6 more than 3 times the smaller. If the twice the larger number is increased by 3 times the smaller, the result is 3. Find the numbers by solving algebraically
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10/05/20

Solve the following system of inequalities graphically on the set of axes below. State the coordinates of a point in the solution set.
y> 3x-5y< -x-1
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10/05/20

Find the limit multiple choice

Find the limit: limx->0[1/(4+x)-(1/4)]/xa. -1/5b.-1/8c.-1/4d.-1/16
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10/03/20

precal question

Each of these equations can be transformed into an equation of linear or quadratic type by applying the hint. Solve each equation. (Enter your answers as comma-separated... more
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10/02/20

Identify the equation in point-slope form for the perpendicular bisector of the segment with endpoints B(6,9) and C(8,−7).
please walk me through how to do this so I can do it on my own next time :) thank you!
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10/02/20

Find the centroid of the region bounded by the curves y = 1 and y = x^2.
I haven't been able to get this one started as well. Thanks for any help you can give me
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10/02/20

A bacteria culture starts with 2000 bacteria and the population doubles after 2 hrs. If we express the number of bacteria after t hours as y(t)=a(e^kt) find a and k
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10/01/20

Calculus Question
Let C denote the curve x2/3+y2/3 = 1. Let P denote a point on the curve C in the first quadrant. Let L denote the normal line to the curve C at the point P. If L passes through the point (1/2,0)... more
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10/01/20

Explain how the graph of y = a sin (bx + c) changes for different values a, b, and c.
Can someone please explain its answer.
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09/30/20

Use the Binomial Theorem to expand and simplify the expression.

Use the Binomial Theorem to expand and simplify the expression.(x + 2)5 − 4(x + 2)4
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09/29/20

evaluate the integral using trigonometric substitution
∫(dz)/(z^3√((z^2)-16))
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09/28/20

Find the parabola with equation y = ax2 + bx whose tangent line at (1, 0) has equation y = 3x − 3.
Find the parabola with equation y = ax2 + bx , whose tangent line at (1, 0) has equation y = 3x − 3.
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09/27/20

Genuinely stumped
The line y+4=3/4(x-8) contains (a,2). Find a
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09/26/20

Perimeter of a plot. Do not understand. Help!
The perimeter of a plot of land in the shape of a right triangle is 48 miles. If the length of one leg of the triangle exceeds the other leg by 4 miles, find the length of each boundary of the... more
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09/25/20

Please help me with math
Let f be the function defined by f(x) = (cx-5x^2)/(2x^2+ax+b) where a, b, and c are constants. The graph has a vertical asymptote at x=1, and f has a removable discontinuity at x = -2.[Unless... more
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09/24/20

determine the infinite limit: lim x--> 5- x+1 / x-5

having trouble understanding how to do these! thank you for the explanation in advance!
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09/24/20

Limit of (x-16)/(x^(7/4)-128) as x approaches 16?
I don't quiet get how to evaluate limx→16 (x-16)/(x^(7/4)-128)Factorization does not work, and I don't see how to apply substitution or the squeeze theorem here. Can anyone help me out?
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09/24/20

For what value of the constant c is the function f continuous at x=2
f(x) = {cx2+2x if x<2 , x^3 -cx if x>_2
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