08/20/24

A mass attached to a vertical spring has position function given by where is measured in seconds and in inches. Find the velocity at time . in/s Find the acceleration at time . in/s2
A mass attached to a vertical spring has position function given by 𝑠(𝑡)=4sin(3𝑡) where 𝑡 is measured in seconds and 𝑠 in inches.Find the velocity at time 𝑡=4.    in/sFind the acceleration at... more
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08/14/24

Use the integral test to find the sum of the series from 1 to infinity: ne^(-n^2)
I found the integral of xe^-x^2 to be -1/2 (e^(-x^2)) and am having trouble evaluating the limit as t goes to infinity of -1/2 e^(-t^2) +1/(2e)
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08/01/24

A BMX bike jumps off a 10 meter tall ramp with an angle of inclination of 35 degrees, and a speed of 12 m/s.
A BMX bike jumps off a 10 meter tall ramp with an angle of inclination of 35 degrees, as shown below, and a speed of 12 m/s.The landing ramp is 6 m high, and 18.2 m away from the base of the... more
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07/09/24

Coulomb's Law Word Problem
Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 22e. Particle 3 of charge q3 = +22e is initially on the x axis... more
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06/12/20

Statistics Question
Suppose that Y1, Y2,...,Yn constitutes a random sample from the normal distribution with a mean of zero and variance σ2, such that σ2>0. Further, it has been shown that σthe MLE for σ2 is σ2-hat... more
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06/10/20

this is my question, can someone help me with it .
Q‒2. A box contains 24 transistors, 4 of which are defective. If 4 are sold at random, find the following probabilities. a) Exactly 2 are defectives.b) None is defective.  c) All are defective.d)... more
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06/10/20

Area/volume geometry word problem

A right square prism four feet tall drops snugly through a ten inch square hole. The contents of the prism must be transferred to a right circular cylinder that must barley fit through the same... more
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02/29/20

the integral of sqrt (x^2+6x)dx, using trig substitution
Please answer ASAP with step by step solution. Thank you so much!
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01/14/20

Function zero problem
find all rational zeros of this functionf(x) = 3x4 + 16x3 - 59x2 - 400x - 400
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01/05/20

Need help of max and min calculus, thank you
Find the x-coordinate of the point(s) of inflection on the graph of y = x3 - 12x2 - 5.Options: x = -2 x = 4 x = 2 x = 12
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01/01/20

Relation of Rates
If y = x3 + 2x and  , find  when x = 2. Give only the numerical answer. For example, if  = 3, type only 3
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12/25/19

binomial distributions

Find the probability of 3 successes in 7 trials of a binomial experiment in which the probability of success in any one trial is 35%. Round to the nearest tenth of a percent.
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09/11/19

line segment xy has endpoints x(5 7) and y(-3 3) find the equation of the perpendicular bisector of line segment xy

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09/09/19

The area of a rectangular wall of a barn is 28 square feet.i its length is 10 feet longer than twice its width . Find the length and width of the wall of the barn
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09/06/19

i need help with this function
consider the function:y={1 if x is rational 0 if x is irrational ( both are inside bracket but couldnt type it like that)Answer one of the following questions:(1) Is this a function?(2) What... more
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09/05/19

Find an​ nth-degree polynomial function with real coefficients satisfying the given conditions.
n=32 and 4i are zeroesf(-1)=-51
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08/20/19

Passing through (1,-3) with x-intercept =-1
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08/16/19

Hypothesis Testing with One Sample
You are conducting a study to see if the accuracy rate for fingerprint identification is significantly more than 0.87. You use a significance level of α=0.05.H0:p=0.87H1:p>0.87You obtain a... more
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08/14/19

An equilateral triangle whose side is 27 inches long is divided into n equilateral triangles whose side lengths are 1 inch. Find n.
An equilateral triangle whose side is 27 inches long is divided into n equilateral triangles whose side lengths are 1 inch. Find n.
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08/12/19

Find an equation in standard form for the hyperbola with vertices at (0, ±4) and asymptotes at y = ±2 divided by 3.x.
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08/12/19

Advanced Functions, grade 12
deermine alllinea functions f(x) = ax+b such that if g(x) = f^-1(x), then f(x) -g(x) = 44 for all values of x
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08/06/19

Confidence Intervals
1.    The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 39.4 for a sample of size... more
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08/06/19

Geometry Question
In the diagram, lines AB and CB are tangent to the circle at points A and C, respectively. They intersect outside of the circle at point B to form angle CBA, which intercepts major arc APC and arc... more
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08/01/19

The volume of a gas is 11.8 mL at 49°C and .942 atm. What will the volume be at 17°C and 0.993 atm? Answer in units of mL
Stuck on this for a long time
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07/31/19

The variable z is directly proportional to x, and inversely proportional to y. When x is 14 and y is 10, z has the value 26.6. What is the value of z when x= 24, and y= 15
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