05/25/23

Write cos(37°)+cos(95°)as a product, with positive angles
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05/22/23

What scale of measurement (i.e. ratio, nominal, etc.)
Rosenzweig, Bennett, and Diamond (1972) studied rats to determine whether an enriched environment could increase brain size. The rats were randomly assigned to one of three conditions: standard... more
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05/19/23

Conditional probability
S and T are two events. P(S)= 0.5 and P(T)=0.7. Given that S and T are independent. Find P(S | S'∩T'). How do you get 0.231?
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05/19/23

Find Percentile

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.6 days and a standard deviation of 2.4 days.What is the 80th percentile for recovery times?... more
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05/14/23

Represent the set {(a − b, b − c, c − a) | a, b, c ∈ R} ⊂ R 3
Represent the set {(a − b, b − c, c − a) | a, b, c ∈ R} ⊂ R 3 as Span{v1, v2, v3} for some vectors v1, v2, v3. Prove that this set is a subspace of R3.
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05/12/23

Use an algebraic method to find the angle between the vectors. Use a calculator to approximate exact answers when appropriate. u=<−15,−8> and v=<-1,5> ​(Round to three decimal places as​ needed.)
Use an algebraic method to find the angle between the vectors. Use a calculator to approximate exact answers when appropriate. u=<−15,−8> and v=<-1,5> ​(Round to three decimal places... more
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05/12/23

Statistics: Linear Regression

You wish to determine if there is a positive linear correlation between the age of a driver and the number of driver deaths. The following table represents the age of a driver and the number of... more
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05/06/23

What is the significance of eigenvalues and eigenvectors in linear algebra, and how are they used in real-world applications?
What is the significance of eigenvalues and eigenvectors in linear algebra, and how are they used in real-world applications?how these are different from each other ?
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05/05/23

Determine if a graph has an Eulerian circuit, trail, or neither and explain why.
Let G be the graph having V (G) = {a, b, c, d, e, f} and E(G) =ad, ae, bc, be, cd, de, df, ef. Does G have an Eulerian circuit, trail, or neither?Explain why.
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04/07/23

Inferential Statistics
How is a t-test for correlated groups and the t-test for single samples alike and different? Is there a current example of this?
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04/02/23

What is the answer to do and how do I solve it?
If m ≤ f(x) ≤ M for a ≤ x ≤ b, where m is the absolute minimum and M is the absolute maximum of f on the interval [a, b], then a). Use this property to estimate the value of the integral. π/8... more
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03/31/23

Find the linear approximation of the f(x,y)= x/(x+y) at the point (1,4) .
Find the linear approximation of the f(x,y)= x/(x+y) at the point (1,4).
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03/31/23

The projected value of an investment is modeled by the exponential function V(t)=30,000(1.125)t , where V(t) is the total value after t years.
What is the percent increase each year for the investment?
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03/30/23

What is the reasoning behind this inequality being displayed like this?

The inequality for the following constraint→ "There cannot be more than 3 child tickets sold for every adult ticket sold."Where child tickets are yand adult tickets are xis y ≤ 3x Why can the... more
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03/30/23

Simple Harmonic Motion - When an insect gets caught in a spider web, its struggles cause the web to vibrate. This alerts the spider to a
When an insect gets caught in a spider web, its struggles cause the web to vibrate. This alerts the spider to a potential meal. The frequency of vibration of the web gives the spider an indication... more
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03/27/23

Well, it might be a bit tricky, but it's below.
Breaker's Manufacturing Company makes 80% of a particular sensor, the Cartin Company makes 15% of them, and the Flutes Company makes the other 5%. The sensors made by Breaker's have a 4% defect... more
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03/25/23

Statistic and Probability
If n = 260 and p(hat)^ = 0.65, construct a 99% confidence interval.
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03/24/23

Statistics and Probability
In a recent year, the Better Business Bureau settled 75% of complaints they received. You have been hired by the Bureau to investigate complaints this year involving computer stores. You plan to... more
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03/22/23

Statistics Question
A certain insurance company sells an home and auto insurance policy that covers losses incurred by a policy holder, subject to a deductible of $202. Losses incurred follow an exponential... more
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03/16/23

precalculus help
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03/16/23

In the card game Magic: the Gathering, spells are cast using mana produced by "land" cards. Suppose your deck has 60 cards, 24 of which are lands.
In the card game Magic: the Gathering, spells are cast using mana produced by "land" cards. Suppose your deck has 60 cards, 24 of which are lands.(a) What is the probability that your opening hand... more
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03/16/23

Find the distance from the point (-3,-6,-9) to the plane 5y-4z=56
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03/15/23

The questions are down below.

Let h(x)=g(3x)a) Find the equation of the tangent line to h(x) at x=1.b) What is h'(0)?c) Evaluate lim h(x)/x-2 x to 2
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03/14/23

Statistics help

Job Elimination: In the past year,13% of businesses have eliminated jobs. If 4 businesses are selected at random, find the probability that at least 2 have eliminated jobs during the last year.... more
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03/13/23

Algebra Word Problem (Details below)
Fergus served his infant a 20 ounce bowl of cream of wheat, and then left the kitchen to check on his daugther. The infant, who hated hot cereal, immediately began emptying his bowl by throwing 1/2... more
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