05/01/21

Use L’Hospital’s rule to evaluate lim(1−2x)^(1/x). (You must use L’Hospital’s ruleto receive credit. Do not use any other method.)
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04/30/21

Probability word problem

An urn contains 11 red, 12 white and 21 blue marbles. A child selects two marbles at random and without replacement from the urn.Find the probability that the colors of the selected marbles are... more
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04/30/21

Hi many tutors have ignored my question but please help me with my chemistry homework as soon as possible please because no one has helped me
3 Cu + 8HNO3 → 3 Cu(NO3)2  + 2 NO + 4 H2OIn the above equation, how many grams of water can be made when 13.5 moles of HNO3 are consumed? Round your answer to the nearest tenth. If you answer is a... more
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04/29/21

Use the graph below to find the limits or explain why the limits do not exist.
a) lim_x→2^- f(x)b) lim_x→2^+ f(x)c) lim_x→2 f(x)It will not let me put the graph but it is a graph showing only the first quadrant labeled 1-5 on both axes. One line has a slope of 1, passes... more
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04/28/21

Proof problem involving a inequality
If x,y positive real numbers, then its true that x^3+y^3 ≥ xy(x+y)
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04/28/21

Please solve this problem!

Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles.cos4(3x)
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04/28/21

I don't understand this. Can someone please help me!!!!
In the figure: AB and AC  are tangent to circle S.Find the measure of SB if AB = 10.5 and AS = 15. Round to two decimal places if necessary. 
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04/26/21

Two Amazon delivery trucks leave a warehouse W at exactly 2:00 pm, driving on 2 different highway routes that are separated by an angle of 140°.
Two Amazon delivery trucks leave a warehouse W at exactly 2:00 pm, driving on 2different highway routes that are separated by an angle of 140°. Truck A istraveling at 60 miles per hour, and truck B... more
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04/25/21

Find absolute max and min
Find the absolute maximum and absolute minimum values of f(x)=x^3-3x^2-45x+1 on [-5,3],along with where they occur.1)the absolute min value is ____ , occurring when x=___2)the absolute max value is... more
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04/25/21

calculus two question

The partial fraction decomposition of x^2+50/x3+3x2 can be written in the form of f(x)/x+g(x)/x2+h(x)/x+3, wheref(x)=g(x)=h(x)=
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04/25/21

How many arrangements are there of the word “test result”
it’s is 1663200 or 8640
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04/25/21

Find the points on the ellipse 3x2 + y2 = 3 that are farthest away from the point (−1, 0).
Find the points on the ellipse 3x2 + y 2 = 3 that is farthest away from the point (−1, 0).
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04/25/21

Given; (odds against A) = 5:4, Find P(A).
Given; (odds against A) = 5:4, Find P(A).would the answer be 5/9?I did P(A) = h/k+h, odds in favour = 5 (h):4 (k) -> P(A) = 5/4+5 = 5/9, but it said the answer is 4/9 and I don't understand why... more
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04/24/21

Solve using R Script to compute a 90% confidence interval for the difference between the average running times of films produced by the two companies
Please solve using R Script and show all coding/steps. Thanks in advance!The following data represent the running times of films produced by two motion-picture companies.There are 2 companies, A and... more
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04/23/21

...what is the probability that two women and a man will give presentations on the second day?
A graduate class in computer science consists of six students, three men, and three women. During the last two days of the semester, presentations are made by the students, three presentations on... more
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04/23/21

Mean Value Theorem

(a): Determine whether each of the conditions of the Mean Value Theorem is met for the function f(x) = x+ 1/x on the interval [1, 3]; in each case, explain or show why the condition is (or is not)... more
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04/23/21

Hanger and Cupboard Probabilty question!
Your cupboard has 10 hangers arranged in a row to hang clothes. There are 7 clothes hung.Assume you picked hangers at random among the spaces available. Find the probability thatthe three empty... more
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04/23/21

Train and seat ticket Probability question!
You are looking for a first-class ticket on a particular train. There are only two seats available inthe whole train with 7 compartments and 100 seats per compartment. Only the first compartmentis... more
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04/23/21

The graph of the function g(x) contains the point (5, 1/3). What point must be on the graph of y=3g(x+3)?
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04/22/21

write your answer as a simplified fraction.
A bag contains 3 red balls, 5 blue balls, and 6 yellow balls.a) If 3 balls are chosen at random, what is the probability that 2 yellow and 1 red ballwill be selected?b) If 1 ball is chosen at... more
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04/22/21

Polar Equations
Find the area of one small petal and one large petal of r = 2+4sin3θ
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04/22/21

Exam takers are classified based on their gender: men and women.

Exam takers are classified based on their gender: men and women. Out of 239 passers, 89 women passed. FInd the lower limit of th 95% confidence interval of the men who passed. Round off answers to... more
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04/22/21

Find the volume between the planes z = 2x+3y +6 and z=2x + 7y +8, and over the triangle vertices (0,0), (3,0), and (2,1)
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04/22/21

Mrs Reyes wants to test if her students in Basic Calculus
Mrs Reyes wants to test if her students in Basic Calculus spend less than 30 minutes per day on homework. A random sample of 64 students shows that they spend an average of 24.5 minutes per day on... more
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04/21/21

The graph of f ′(x) is continuous and increasing with an x-intercept at x = 0. Which of the following statements is false?
a)The graph of f is always concave up.b)The graph of f has an inflection point at x = 0.c)The graph of f has a relative minimum at x = 0.d)The graph of the second derivative is always positive.
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