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Khalid Kashmiri

Khalid K.

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The point on the unit circle that corresponds to $\theta=\frac{\pi}{3}$ is (a) $\left(\frac{1}{2}, \frac{\sqrt{3}}{2}\right)$ (b) $\left(\frac{\sqrt{2}}{2}, \frac{\sqrt{2}}{2}\right)$ (c) $\left(\frac{\sqrt{3}}{2}, \frac{1}{2}\right)$ (d) $\left(\sqrt{3}, \frac{2 \sqrt{3}}{3}\right)$

Precalculus

Trigonometric Functions

Trigonometric Functions: Unit Circle…
The electron beam emitted by an electron gun is controlled (steered) with two sets of parallel conducting plates: a horizontal set to control the vertical motion of the beam, and a vertical set to control the horizontal motion of the beam. The beam is emitted with an initial velocity of $2.00 \cdot 10^{7} \mathrm{~m} / \mathrm{s}$. The width of the plates is $d=5.00 \mathrm{~cm}$, the separation between the plates is $D=4.00 \mathrm{~cm},$ and the distance between the edge of the plates and a target screen is $L=40.0 \mathrm{~cm}$ In the absence of any applied voltage, the electron beam hits the origin of the $x y$ -coordinate system on the observation screen. What voltages need to be applied to the two sets of plates for the electron beam to hit a target placed on the observation screen at coordinates $(x, y)=(0 \mathrm{~cm}, 8.00 \mathrm{~cm}) ?$

The electron beam emitted by an electron gun is controlled (steered) with two sets of parallel conducting plates: a horizontal set to control the vertical motion of the beam, and a vertical set to control the horizontal motion of the beam. The beam is emitted with an initial velocity of $2.00 \cdot 10^{7} \mathrm{~m} / \mathrm{s}$. The width of the plates is $d=5.00 \mathrm{~cm}$, the separation between the plates is $D=4.00 \mathrm{~cm},$ and the distance between the edge of the plates and a target screen is $L=40.0 \mathrm{~cm}$ In the absence of any applied voltage, the electron beam hits the origin of the $x y$ -coordinate system on the observation screen. What voltages need to be applied to the two sets of plates for the electron beam to hit a target placed on the observation screen at coordinates $(x, y)=(0 \mathrm{~cm}, 8.00 \mathrm{~cm}) ?$

University Physics with Modern Physics

Explain the difference between an absolute minimum and a local minimum.

Explain the difference between an absolute minimum and a local minimum.

Calculus: Early Transcendentals

Applications of Differentiation

Maximum and Minimum Values
For each of the numbers $ a $, $ b $, $ c $, $ d $, $ r $, and $ s $, state whether the function whose graph is shown has an absolute maximum or minimum, a local maximum or minimum, or neither a maximum nor a minimum.

For each of the numbers $ a $, $ b $, $ c $, $ d $, $ r $, and $ s $, state whether the function whose graph is shown has an absolute maximum or minimum, a local maximum or minimum, or neither a maximum nor a minimum.

Calculus: Early Transcendentals

Applications of Differentiation

Maximum and Minimum Values

Questions asked

INSTANT ANSWER

minutes and the standard deviation was 69.67 seconds. Does this data support the manufacturer's claim of less than 3.5 minutes? Set up the appropriate hypotheses test procedure. Test using alpha \( =0.05 \). (a) Choose the correct statistical hypotheses. A. \( H_{0}: \bar{X}=3.5 \) minutes \( , \quad H_{A}: \bar{X}<3.5 \) minutes B. \( H_{0}: \mu=3.5 \) minutes \( \quad H_{A}: \mu<3.5 \) minutes C. \( H_{0}: \bar{X}>3.5 \) minutes, \( \quad H_{A}: \bar{X}<3.5 \) minutes D. \( H_{0}: \underline{\mu}>3.5 \) minutes, \( \quad H_{A}: \underline{\mu}<3.5 \) minutes E. \( H_{0}: \bar{X}=3.5 \) minutes, \( \quad H_{A}: \bar{X} \neq 3.5 \) minutes F. \( H_{0}: \mu=3.5 \) minutes \( , \quad H_{A}: \mu \neq 3.5 \) minutes (b) Determine the value of the test statistic for this test, use at least two decimals in your answer. \[ \text { Test Statistic }= \] \( \square \) (c) Determine the \( P \)-value for this test, to at least three decimal places. \[ P=\square \] (d) Based on the above calculations, we should \( \square \) the null hypothesis. Use alpha \( =0.05 \) Preview My Answers Submit Answers reject Fail to reject

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INSTANT ANSWER

Refer to the figure. If this country allows free trade in wagons, how much will consumers gain or lose? lose by \( \$ 75 \) lose by \( \$ 240 \) gain by \( \$ 240 \) gain by \( \$ 120 \)

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ANSWERED

Taha T verified

Numerade educator

Question 17 (1 point) Figure 8-6 Refer to the figure. With the tax, what will total tax revenue be? $3000 $1500 Some other value $2400 $6000

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ANSWERED

Taha T verified

Numerade educator

Refer to figure. What would consumer surplus be after the tax is levied? $150 $125 $75 $45

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ANSWERED

Ivan Kochetkov verified

Numerade educator

A hockey player is to take 3 shots on a certain goalie. The probability he will score a goal on his first shot is 0.4. If he scores on his first shot, the chance he will score on his second shot increases by 0.1; if he misses, the chance that he scores on his second shot decreases by 0.1. This pattern continues to on his third shot: If the player scores on his second shot, the probability he will score on his third shot increases by another 0.1; should he not score on his second shot, the probability of scoring on the third shot decreases by another 0.1. A random variable X counts the number of goals this hockey player scores. (a) Complete the probability distribution of X below. Use four decimals in each of your entries. | X | 0 | 1 | 2 | 3 | |---|---|---|---|---| | P(X = x) | [ ] | [ ] | [ ] | [ ] | (b) How many goals would you expect this hockey player to score? Enter your answer to four decimals. E(X) = [ ] (c) Compute the standard deviation the random variable X. Enter your answer to two decimals. SD(X) = [ ]

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ANSWERED

Taha T verified

Numerade educator

14 couples (28 people) take part in a contest where 14 people are to be selected at random to win a $100 prize. (a) How many possible different combinations of winners are there? Answer: (If rounding, use at least four digits after the decimal in your answer) (b) What is the probability that one person from each of the 14 couples wins a prize? Answer: (If rounding, use at least four digits after the decimal in your answer)

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ANSWERED

Taha T verified

Numerade educator

Consider two unopened bags of candy (one Skittles, the other M&M's). The manufacturers state that the distribution of coloured candies is: M&M'S: 23% blue, 20% orange, 16% green, 13% yellow, 12% red, 16% brown. SKITTLES: colours are distributed evenly, meaning each colour (red, orange, green, blue, yellow, and purple) has a probability of 1/6. Assume that both of these unopened bags have the same number of candies. The bags are opened and the candies are mixed in a bowl. If one orange candy is randomly selected from this bowl, what is the probability it is a Skittle? (Hint: since both unopened bags have the same number of candies, the probability of choosing a(n) orange M&M from the mixed bowl is half of the probability of choosing a(n) orange M&M from the unopened bag of M&M's, and similarly for the probability of choosing a(n) orange Skittle from the mixed bowl.) P(Skittle | orange) = [ ] (If rounding, use at least four digits after the decimal in your answer)

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ANSWERED

Taha T verified

Numerade educator

Consider two unopened bags of candy (one Skittles, the other M&M's). The manufacturers state that the distribution of coloured candies is: M&M'S: 23% blue, 20% orange, 15% green, 15% yellow, 14% red, 13% brown. SKITTLES: colours are distributed evenly, meaning each colour (red, orange, green, blue, yellow, and purple) has a probability of 1/6. Assume that both of these unopened bags have the same number of candies. The bags are opened and the candies are mixed in a bowl. If one red candy is randomly selected from this bowl, what is the probability it is a Skittle? (Hint: since both unopened bags have the same number of candies, the probability of choosing a(n) red M&M from the mixed bowl is half of the probability of choosing a(n) red M&M from the unopened bag of M&M's, and similarly for the probability of choosing a(n) red Skittle from the mixed bowl.) P(Skittle | red)= (If rounding, use at least four digits after the decimal in your answer)

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ANSWERED

Ivan Kochetkov verified

Numerade educator

In a certain population of people, ( 17 % ) will contract Disease ( A ) at some point in their lifetime, ( 25 % ) will contract Disease ( B ) at some point in their lifetime, and ( 73 % ) will not contract either of these diseases in their lifetime. A person from this population is randomly chosen. Part (a) Complete the probability table below. Use two decimals in each of your answers. egin{tabular}{|c|c|c|c|} hline Disease & ( A ) & ( A^{c} ) & Row Probabilities \ hline( B ) & ( square ) & ( square ) & ( square ) \ hline( B^{c} ) & ( square ) & ( square ) & ( square ) \ hline Column Probabilities & ( square ) & ( square ) & ( square ) \ hline end{tabular} Part (b) Find the probability that the person chosen contracts Disease ( A ) or Disease ( B ). Enter your answer to two decimals. ( square ) Part (c) Find the probability that the person chosen contracts only one of these two diseases. ( square ) (use two decimals) Part (d) Suppose a person contracts Disease ( A ). What is the chance that this person will contract Disease ( B ) ? Enter your answer to four decimals. ( square ) Part (e) If a person contracts Disease ( B ), what is the probability they will also contract Disease ( A ) ? ( square ) (use four decimals)

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ANSWERED

Breanna Ollech verified

Numerade educator

Use the following information to answer numerical-response question 1. Three charged spheres, I, II, and III, are arranged as shown below. Directions Numerical Response 1. The magnitude of the net electrostatic force experienced by ( q_{ ext{II}} ) because of ( q_{ ext{I}} ) and ( q_{ ext{III}} ), expressed in scientific notation, is ( a.b imes 10^{-c} ext{ N} ). You will need to record the values of ( a, b ), and ( c ). Based on the information given in the information box, the direction of the net electrostatic force experienced by the charge on ( q_{ ext{II}} ) is numbered ( e ). You will need to record the value of ( e ). The values of ( a, b, c ), and ( e ) are ____ ____ ____ ____. (Record all four digits of your answer in the response area at the bottom of the screen.)

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