03/17/21

I REALLY NEED HELP ON THIS QUESTION IM BEGGING YOU
Ashley had a summer lemonade stand where she sold small cups of lemonade for $1.25 and large cups for $2.50. If Ashley sold a total of 155 cups of lemonade for $265, how many cups of each did she... more
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03/17/21

Let y=ln(x^2+y^2). Determine the derivative y′ at the point ((-√e^9 - 81), 9)
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03/16/21

In an arithmetic sequence, a_4 = 12 and a_16 = 42. Find a_n, a_20, and the sum of the first 20 terms.
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03/15/21

Help me on this plz ASAP!

Given: △ACE≅△BCE.Prove: △ACD≅△BCD. C D ... more
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03/09/21

Find k such that the line is tangent to the graph of the function.
Function     Line f(x) = k x      y = 2x + 18 k = 
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03/03/21

What is a rational function that satisfies the following properties
What is a rational function that satisfies the following propertiesA zero at x=3A hole when x=5A vertical asymptote at x=-1A horizontal asymptote at y=3A y-intercept at y=-9*if someone could please... more
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03/02/21

Find the coordinates of circumcentre and radius of circumcircle of ΔABC if A (3,3), B(2,10) and C (9,11) are given
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02/28/21

Find the indefinite integral using the substitution x = 2 sec(𝜃). (Use C for the constant of integration.) ∫x^3√x^2 − 4 dx
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02/27/21

Differentiate dy/dx 9 cos x sin y = 2
I got the fraction form of the answer but the right option was like tan(x)tan(y).....not sure how tan comes how into play here in the end
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02/23/21

Find y'' of y = (2x^2+5x)^3 (x^2-1)^4
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02/22/21

By choosing appropriate secant lines, estimate the slope of the tangent line at P. (Round your answer to two decimal places.)
The point P(1,0) lies on the curve y=sin((14pi𝜋)/(x)).(a) If Q is the point (x,sin((14𝜋)/(x)), find the slope of the secant line PQ (correct to four decimal places) for the following values of... more
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02/20/21

The graph of a piecewise function contains the points(-5,-2),(0,1) and (2,7). A line segment connects(0,1) to (2,7), and another line segment connects(-5,-2) to (0,1).

The graph of a piecewise function contains the points(-5,-2),(0,1) and (2,7). A line segment connects(0,1) to (2,7), and another line segment connects(-5,-2) to (0,1). On graphing grid paper, draw... more
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02/19/21

Let R be the region bounded by y=6e^(-0.2x) and y=√x and the lines x=1 and x=4. Find the volume when R is rotated about the x-axis.
Let R be the region bounded by y=6e^(-0.2x) and y=√x and the lines x=1 and x=4. Find the volume when R is rotated about the x-axis.
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02/17/21

Does the derivative of f(x)=log_7((x-2)^2sqrt(x+6)) equal (5x+22)/2ln(7)(x-2)(x+6)
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02/16/21

Differentiate. (1/y^2 -3/y^4)(y+7y^3)
I rewrote it to be (y^-2-3y^-4)(y+21y^2)+y+7y^3(-2y^-3+14yy^-5)Am I supposed to distribute all of that ?
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02/16/21

A region is Enclosed by y=x and y=(x^2)/2 and revolved around y=-1. To find the volume of the solid, set up the integral with both the disk/washer method and the cylindrical shells method.
A region is Enclosed by y=x and y=(x^2)/2 and revolved around y=-1. To find the volume of the solid, set up the integral with both the disk/washer method and the cylindrical shells method.2.using... more
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02/14/21

A 0.6 ml dose of a drug is injected into a patient steadily for half a second.
At the end of this time, the quantity, Q, of the drug in the body starts to decay exponentially at a continuous rate of 0.2% per second. Using formulas, express Q as a continuous function of time,... more
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02/13/21

Find all values of x where the tangent lines to y=x^7 and y=x^8 are parallel.
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02/13/21

CALCULUS BUSINESS
Using the four-step process that we discussed in this course, find the equation of the line tangent to f(x) = −x^2 + 2x + 15 at the point (−2,7).
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02/13/21

Mixture problem help!! I'll really appreciate it if you can explain i cant understand this problem thanks!!
A tank contains a mixture of acid and water. If 30 liters of acid are added the mixture will be 70% acid. If 30 liters of water are added the mixture will be 50% acid. Find the percentage of acid... more
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02/12/21

If a ≠ 0 , then what does a^9/a^5 equal?
the title says it, i dont understand what the question even meansIf a≠0, then what does a9/a5 equal?
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02/12/21

Differentiate g(t)=t^8cos(t)
I got .......t^8(-sint)+cost(8t^7)then.......8t^7cost-t^8sintlastly gcf t^7(8cost+tsint) why isnt that right????
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02/11/21

Algebra 1 Exponent Problem

I cannot seem to be able to solve this, please someone solve and explain it. Thank you. The expresson (5x^3 y^5)^m * (x^5 y^3) Simplifies to 125x^14 y^14 What is the value of "m"?
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02/09/21

Find the volume of the solid formed by revolving the region bounded by the graphs of y=x^3+x+1, y=1, and x=1 about the line x=2.
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02/08/21

Find the solution set of the equation 7tanθ = 2√3 + tanθ
I think that the solution set is {30°} but I’m not sure how to solve the equation since we only discussed as to how (cosineθ, sineθ) = (x, y).
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