12/18/23

A particle's position (in meters) is given by the equation s(t) = 5x sin(2x), on the interval [-1, 4] minutes. What is its instantaneous velocity at t=0
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12/13/23

Minimizing cost of a open box
A rectangular box, made with a square base and no top, is to have a volume of 12 cubic feet. The material for the base of the box costs 9 dollars per square foot, and the material for the sides... more
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12/12/23

Find the rate at which the water level is rising when the water level is 4 cm.
An inverted pyramid is being filled with water at a constant rate of 55 cubic centimeters per second. The pyramid, at the top, has the shape of a square with sides of length 3 cm, and the height is... more
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12/09/23

A sample of = 21 of juniors at PSU found a mean age of 23 years
A sample of n1 = 21 of juniors at PSU found a mean age of 23 years. A sample of n2 = 20 juniors at OSU found a mean age of 22 years. The population ages are normally distributed and o1 = 2 o2 =... more
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12/04/23

Not able to solve it
Find area between curvey=4cos(6x), y=4sin(12x), x=0, x=pi/12
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11/30/23

section 4.2 mth 1310 web assign finite math
A sausage company makes two different kinds of hot dogs, regular and all-beef. Each pound of all-beef hot dogs requires 0.75 lb of beef and 0.2 lb of spices, and each pound of regular hot dogs... more
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11/03/23

Parametric Equations: Maximum

Find the time it takes for a ball following the path of the parametric equations, x = 4t - 8 and y = -t^2 + 18t, to reach a maximum
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11/03/23

statistics and probability
Assume that � has a normal distribution with the specified mean and standard deviation.Mean=6; standard deviation=1.1Find the cutoff values of the middle 70%. Round your answers to 3 decimal... more
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11/03/23

Determine the values of x for which this series.
Determine the values of x for which the series converges (this is a geometric series.)
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11/03/23

I cant figure out how to do figure out this sequence since it has factorials in it.
Determine is the given sequence is monotonic.
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11/01/23

Based on a sample of 200 people, 65% owned cars. What is the test statistics and p value
The test is two tailed and failed to reject the null hypothesis
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10/18/23

Finite math (expected value) word problem
Assume that the fish pond contains 90 fish: 62 blue, 27 silver, and 1 purple. A contestant pays $0.65 to randomly catch one fish and receives $0.30 if the fish is blue, $1.20 if the fish is silver,... more
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10/06/23

Assume that there are 19 frozen dinners: 9 pasta, 7 chicken, and 3 seafood dinners. The student selects 5 of them. What is the probability that at least 2 of the dinners selected are pasta dinners?
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09/25/23

Piecewise Function
Using the piecewise function P(x)={3x-45, 0 ≤ x ≤ 50}, {3x-65, 50 < x ≤ 100}, {3x-85, 100 < x ≤ 150}Find P(10) and P(50) and explain why they satisfy the first part of the function which is... more
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09/14/23

Finite sales positions problem
Assume that 12 people, including the husband and wife pair, apply for 5 sales positions. People are hired at random. 1) What is the probability that both the husband and wife are hired?2) What is... more
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08/28/23

limits to infinity
lim x-> infinity (4-2x^2)/(2e^x)lim x-> infinity (sqrt3x^6-x^3)/(7x^3+1)for this one I got DNE? i first factored the top to absolute value x^3(3x^3-1) all over 7x^3+1. then set two equations... more
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08/27/23

Assuming t is the number of hours since midnight, find an equation for the temperature, T, in terms of t.
The temperature during the day can be modeled by a sinusoid. Answer the following question given that the low temperature of 17 degrees occurs at 3 AM and the high temperature for the day is 45... more
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07/19/23

Please help me and show step by step
You are given a linear programming problem. Maximize      P = 3.5x + 3y subject to   5x  +  3y  ≤  30      Resource 1 2x  +  3y  ≤ 21 Resource 2 x  ≤ 4 Resource 3 y  ≥ 0 x  ≥ 0 (a)... more
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06/18/23

Solve the system of linear equations using the Gauss-Jordan elimination method. 2x1 − x2 + 3x3 = −13 x1 − 2x2 + x3 = −4 x1 − 5x2 + 2x3 = −9
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06/14/23

Assume the random variable X is normally distributed with mean = 50 and standard deviation a = 7. Find the 67th percentile
Assume the random variable X is normally distributed with mean = 50 and standard deviation = 7. Find the 67th percentile The 67th percentile is ____ ( Round to two decimal places as needed)
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06/14/23

The number of chocolate chips in an 18 ounce bag of chocolate chip cookies is approximately normally distributed with mean 1252 and standard deviation 129 chips. See description for details.

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with mean 1252 and standard deviation 129 chips. What is the probability that a... more
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06/14/23

Find the x intercept of the rational function
Find the x- and y-intercepts of the rational function.r(x)= x2 - 9 x2x-intercept (x, y)= (smaller x-value)x-intercept (x, y)= (larger ... more
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06/13/23

Joint Density/Distribution

Let X and Y be jointly continuous random variables with a joint density given byfXY (x, y) = c where 20 < x < y < 40,where c is a constant. Find c and the joint distribution function for X... more
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06/12/23

f(x) = x^3 + 3sin x + 2cos x | Find (ƒ^(-1))'(2)
ƒ(x) = x3 + 3sin x + 2cos xFind (ƒ-1)'(2)
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06/12/23

Ch 5, 6, 7 Questions 5
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12.5 years, and standard deviation of 3.2 years.If you randomly purchase one item, what is the probability... more
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