05/17/21

A spherical balloon is being inflated at a rate of 8pi cm^3/s At what rate is the surface area of the balloon increasing at the instant that the radius of the balloon is 1cm?
A spherical balloon is being inflated at a rate of 8pi cm^3/s At what rate is the surface area of the balloon increasing at the instant that the radius of the balloon is 1cm?
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05/17/21

Write each of the following equations in vertex form and determine the vertex, focus, directrix, and axis of symmetry of the parabola. Graph the parabola.
x²= –16y + 64
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05/15/21

A rectangular storage container with an open top is to have a volume of 5 m3.

A rectangular storage container with an open top is to have a volume of 5 m3. The length of its base is twice the width. Material for the base costs $4 per square meter. Material for the sides... more
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05/11/21

what is the answer
Use the first derivative test to determine the local extrema, if any, for the function: 
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05/11/21

If f(x) = (e^x) − 7, 0 ≤ x ≤ 2, find the Riemann sum with n = 4 correct to six decimal places, taking the sample points to be midpoints
If f(x) = ex − 7, 0 ≤ x ≤ 2, find the Riemann sum with n = 4 correct to six decimal places, taking the sample points to be midpoints
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05/10/21

height of a cylinder(round can) is 8". what is the domain of A(r)

This question has three parts and I am having a hard time at a starting pointPart a: the formula is A(r)=2*Pi^2+16*Pi*r How would I find the domain of A(r)?Part b: finding the r as a function of A... more
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05/10/21

if f(x)=√(x-1) has an inverse function, use the inverse to find (f6-1)'(2).
if f(x)=√(x-1) has an inverse function, use the inverse to find (f6-1)'(2).
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05/10/21

Very confused with this Question, please help and explain: From a standard deck of cards, how many five card hands contain:
From a standard deck of cards, how many five card hands contain:c) 3 red cards and 2 clubs
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05/10/21

How long are the bases of a trapezoid with an area of 65 square feet and a height of 10 feet if Base Two is one less than twice Base One?

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05/10/21

Need help with a Calculus question

Below is the whole question. All of the data in "a.)" is correct. I need help finding the slope of the tangent line at P (3, 2.8). This is part "b" in bold below.The experimental data in the table... more
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05/07/21

I I need help thank you
The moon Titan orbits Saturn in an elliptical path with the center of Saturn at one focus. The major and minor axes of the orbit have lengths of 51,390 km and 49,255 km, respectively. Find the... more
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05/06/21

calculus help would be greatly appreciated

If the graph of f " (x) is continuous and has a relative maximum at x = c, which of the following must be true?The graph of f has an x-intercept at x = c.The graph of f has an inflection point at x... more
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05/06/21

How can I solve this? Thank you in advance!!
For 0 ≤ θ < 2π, find the solution(s) to the equation: -3cos(θ) = 2sin2 (θ) - 3
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05/06/21

use sum of first 3 terms to estimate sum. how good is the estimate? ∞∑ n=2 (-1)^(n-1) * ( 1/ (n-1) )
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05/06/21

Determine whether the scenario involves independent or dependent events. Then find theprobability.
A spinner has an equal chance of landing on each of its three numbered regions. You spin four times. The first spin lands in region one and the remaining spins lands in region three.
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05/06/21

What are the rational root(s) of 3x3 − 6x2 − x + 2 = 0?
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05/05/21

Finding the interval of convergence of the integral
Let f(x)= ∑n=1∞ (-1)^n (x/4)^n. Find the series and interval of convergence for the integral from 0 to x of f(t)dt
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05/05/21

Differentiate the function with respect to x
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05/04/21

Permutations Question Help!
1.How many numbers greater than 300,000 are there using only the digits 1,1,1,2,2,3?How would do this question, please explain with additional steps.
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05/04/21

Permutations Question
a) How many permutations are there of the letters of the word BASKETBALL? I know the answer is 453,600. (Needed help for b,c, and d) b) How may of the arrangements begin with K? ... more
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05/03/21

What is the solution of the​ equation? Eliminate any extraneous solutions
For the function​ f(x)=x+9, find f◦f^ −1(5).
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05/03/21

Factorial Questions Help
Calculate each factorial: a) 20x9! I’m still confused on how to put in fraction form, I did 5x4 which = 20 and did 5x4x3x2x1 = 5! and it was wrong, Does it matter what numbers your multiplying to... more
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05/03/21

What is the particular solution to the differential equation dy/dx= 3(1+3y)/ (1+x)^2 with the initial condition y(-2)=0
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05/03/21

Convert the rectangular equation y=3x^2−2 to a set of parametric equations using the parameter t=x−2.
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05/03/21

Q: A combination lock uses the numbers from 0 to 59.

1.A combination lock uses the numbers from0 to 59. Three numbers are dialled in thecorrect sequence. How many unique lockcombinations are possiblea) if repetition is permitted? <- why isn't it... more
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