10/25/19

What is the probabailty

Number of Credit Cards Frequency Relative Frequency Cumulative Counts 0 7 .08 .08 1 33 .40 .48 2 18 .22 .7 3 12 .14 .84 4 8 .10 .94 5 5 .06 1.00 Question: What is the probability... more
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10/25/19

4 set Venn Diagram problem
Trying to solve this for a few days. Couldnt solve it. 1.       Kroner asked 600 adults whether they had studied French, Arabic, German or Chinese in school. The report showed that:215 had... more
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10/24/19

Maximize profit
Maximize z=12x+15y subject to:10≤x≤208≤x≤17y≤20x+y≤20
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10/23/19

maximum height of a ball

The height (feet) of an object launched in the air t seconds after launch is given by s=-16t2+224t+7. Find the time when the ball reaches its maximum height.
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10/23/19

Derivatives Plz Help I'm close to dropping but this is required
f(x) = 3 sin(x) + 11 cos(x)f ' (x) = f ' (7pi/4) =
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10/23/19

Derivatives Plz Help I'm close to dropping but this is required
Find dy/dx x = - 1 given that y = 5 + 2x2dy/dx x = - 1: ________
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10/23/19

Derivatives Plz Help I'm close to dropping but this is required
If f (x) = 4then f ' (3) =
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10/22/19

Probability and Stats
A basketball team consists of 12 freshman, 8 sophomores, 9 juniors, and 5 seniors. 4 players are selected at random to serve as captains. Find the following probabilities. All 4 are seniors One... more
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10/22/19

Given the parametric curve x= sin(2t) and y=2 sin(t)+ sin(2t).

1) Calculate the slope of the tangent line at any value of t. 2) Find the tangent line at t= (1/2)(Pi).
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10/22/19

rosa rides on the bus for 24 minutes and then walks for 12 minutes in order to get to work if the bus travels at 40mph and rosa walks at 6mph then how far does rosa live from.work
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10/22/19

Leo is 5 years older than pat. in 10 years, Leo will be twice Pat's present age. How old is Leo now?
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10/22/19

Commission of sales in piece wide function
You're pursuing a career in sales, and your commission earned is determined by the following information: If you earn less than $500 in sales, then your commission is 25% of your total sales. If... more
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10/22/19

Given the curve of C defined by the equation x^2 - 2xy +y^4 =4.
1) Calculate the slope of the tangent line at any value of t.2) Find the tangent line at t= (1/2)(Pi).
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10/22/19

Help please. I can’t solve this
You have 120 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area
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10/22/19

you have 183 coins in nickels dimes and quarters with a combined value of $15.75 .you have three times as many buckles as dimes.find the number of each type of coin .
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10/22/19

Each of the following statements is false. Provide why the statement is false.
1) Every function that is continuous at x=a is differentiable at x=a.2) The tangent line to y=f(x) when x=x0 is given by y=fprime(x0)x+f(x0).3) The linerization of a function f(x) when x=x0 is the... more
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10/22/19

Probability and Statistics

A day trader buys an option on a stock that will return $200 profit if the stock goes up today and lose $600 if it goes down. The trader thinks there is a 70% chance that the stock will go... more
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10/22/19

Find all points on the curve x^2-y^2=1 closest to (0,2)
I know i need to minimize the distance, but I am having trouble figuring out what equations or functions to use.
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10/21/19

Composition Function! Calculus
Let h(x) = (fog)(2x). Find h `(2)f `(2)=3f(2)=4f(4)=-1f ` (4)= -4g(4)=2g ` (4)=1g(2)= -2g `(2)=5
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10/21/19

What is the equation of line that is parallel to the line y=5x+2 And passes through (-2,1)?
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10/21/19

Find the inverse and State the domain. f(x)=9x-5/4x-5
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10/20/19

Continuous Compounding
Suppose you can earn interest at some rate between 0% and 5%. Use your knowledge of the exponential function to explain why continuous compounding does not give you much of an investment advantage.
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10/20/19

Find all critical numbers of the function
b) f(x) = (x-1) / (x2+2x+1)
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10/20/19

Find the absolute maximum and minimum values of the function
b) g(x) = sin(2x) + 2 cos(x) on the interval [0,π/2].
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10/20/19

Secant and Tangent Lines
f(x) = {3x, x ≥ 0 -2x, x < 0Let gd(x) be the average rate of change for f(x) over the interval [x, x+d], where d is positive fixed value. What is the point x* for which the absolute value of... more
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