10/28/20
Company profit of algebraic
a company daily profit p in dollard as a function of number of units sold x is f(x)=-x^2+800x-154,000 which of these statements is true?a the least the company can make in a day is $400b the most...
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Dont really understand can someone break it down please
The height of a triangle is increasing at a rate of 2.5 centimeters/minute while the area of the triangle is increasing at a rate of 5 square centimeters per minute. At what rate is the base of the...
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Calculus Integrals
Find the range of the function . (4 points)Answer Choices:
[-4, 4]
[-4, 0]
[0, 4π]
[0, 8π]
10/28/20
Consider the following function
Consider the function f(x) = x^2/(8(x^2)+3)List the x values of the inflection points of f. If there are no inflection points, enter 'NONE'.
10/28/20
Probabilty Question: Color of the Marble
Mr.W puts two blue marbles and one green marble into his pocket. Then he randomly takes out one. After recording the color of the marble, he puts the marble back. He repeats this 6 times. a.What is...
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10/27/20
Use the distance formula to write an equation of the parabola. For these following problems:
Focus: (0,1) Directrix: y = -1
Focus: (0,-2) Directrix: y = 2
Vertex: (0,0) Directrix: y = -6
Vertex: (0,0) Focus: (0,-10)
Write an equation for a rational function with: Vertical asymptotes at x = 4 and x = -5 x intercepts at x = 1 and x = -3 y intercept at 10
Write an equation for a rational function with:Vertical asymptotes at x = 4 and x = -5x intercepts at x = 1 and x = -3y intercept at 10
10/27/20
Discrete mathematics problem concerning tiling with 3 sub questions.
4. Let Tn be the number of ways of tiling a 2 × n rectangle using tiles of dimensions 1 × 2 or 2 × 2. For example, the picture below shows one of the tilings counted by T12. (i) Find (and justify!)...
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10/26/20
In a sample of 1446 U.S. registered voters, 217 said that JFK was the best
president since WWII. Two registered voters are selected at random without replacement.(a) Find the probability that both registered voters say that JFK was the best.(b) Find the probability that...
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10/25/20
Width of a frame
A rectangular painting (not including the frame) has a width of 10 inches and a length of 11 inches. If the area of the frame (of uniform width) is 232 square inches, what is the width of...
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10/25/20
What is the APY for money invested at each rate? (A) 11% compounded monthly (B) 12% compounded continuously
What is the APY for money invested at each rate?(A) 11% compounded monthly(B) 12% compounded continuously(A) APY=_______ % (Round to three decimal places as needed.)(B) APY = ________ %...
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10/25/20
Use technology and the future value formula to find i. FV=$7,426; PMT=$600; n=9; i=?
Use technology and the future value formula to find i.FV=$7,426; PMT=$600; n=9; i=?i= _______(Round to two decimal places as needed.)
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10/25/20
Math - Pre Calc
Find an equation of the line that satisfies the given conditions.Through (9, 3); perpendicular to the line y = 6
10/25/20
Confusion Matrix
Let us say you are trying to predict the diabetic status of 200 patients as diabetic or not. 120 of these patients are actually diabetic and the rest are not. You apply an algorithm, which...
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im not sure where to go from here. can someone help me? IM IN DESPERATE NEED
Central Perk Coffee Shop sells a specialty drink at $2.60 per cup. The shop sells about 200 cups per day. Customer surveys show that for every $0.05 decrease in price, the shop will sell 10 more...
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10/24/20
Use the formula for the present value of an ordinary annuity or the amortization formula to solve the following problem.
Use the formula for the present value of an ordinary annuity or the amortization formula to solve the following problem. PV=$5,000; i=0.01; PMT=$250; n=?n=________ (Round up to the...
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10/24/20
Solve the following problem. PV=$24,187; n=102; i=0.035; PMT=?;
Solve the following problem.PV=$24,187; n=102; i=0.035; PMT=?;PMT=$_______ (Round to two decimal places.)
10/24/20
Trigonometry 2 section proof
Prove the identity in a 2 column format. sin2(2x) + 4cos4(x) = 4cos2(x)
10/23/20
Find any asymptotes and holes in the graph of the rational function. Verify your answers by using a graphing utility. (Enter answers as a comma-separated list. If an answer does not exist, enter DNE.)
f(x) = x2+2x+1 / 8x2-x-9vertical asymptote(s): x= horizontal asymptote(s): y=hole(s): x=
10/23/20
i need help with a statistics probability word problem
Four balls are picked from a box containing 7 white, 6 black, 5 red and 4 green balls. Find the probability that (a) all balls are of different colors. (b) all balls are of the same color.
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10/23/20
Circle Trigonometry
Identify the point (x,y) on the unit circle the corresponds to t= -pi/6
10/23/20
Finding the short base of a right trapezoid with a little bit of geometry
We have a right trapezoid with 2 diagonals that are perpendicular with each other. <A = 90, AB = 6 sm, AD = 4 sm, DC = ?image: https://i.imgur.com/5aJEvNm.jpgthanks!
10/23/20
Statistics and probabilities
If you are performing a matched pairs t-test and you have a critical value of +/-2.131 for an alpha = .05, how many participants did you recruit?
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