06/08/20

what is the detailed answer for this question?
Students have been organized in two groups for Chinese language courses – 10 students in the first group and 9 in the second. 2 students in the first group and 7 in the second have prior... more
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06/08/20

Pre calc cos(15x)+cos(6x)
Write the sum as a product.cos(15x) + cos(6x)
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06/08/20

The 2 events P(E) and P(F) are independent with P(E) =0.45 and P(F) =0.65. Find P(E U F)
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06/07/20

Calculus Problems
By applying the Mean Value Theorem to the function f(x)=\sqrt[5]{x}$ on [32,33] show that 2<\sqrt[5]{33}<2.015
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06/07/20

Calculus Problems
\documentclass[]{article}\begin{document}\textbf{\underline\\2. Let $g$ be continuous on $[a, b]$ and $g(x) \in[a, b]$ for all $x \in[a, b] .$ Prove the following.\\(i) $g$ has at least one fixed... more
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06/07/20

Markov Chain Problem
An investor bought shares of a company at $30 per share. Currently the value of the share is $31. The investor will sell the shares either as soon as he makes 10% or more, or when the stock drops... more
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06/07/20

1. Find the number of ordered pairs of positive integers (m, n) such that (m^2)n = 20^20
m2n = 2020
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06/07/20

Mathematics Probability
A password is a sequence of letters (a{z) and digits (0{9). Find the number of passwords of length 10 under the constraints in (a), (b) or (c) (three separate problems). Express your answer using... more
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06/07/20

Mathematics Probability
The planner in charge of raw materials operations at a well known beer-producing company needs to obtain 5 truckloads of fresh water. The ve trucks available can go to any of 11 sources of water... more
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06/06/20

Help!! I can't find the answer to this question no matter how much I try to work through it...
 The radioactive isotope Caesium-137 has a half-life of 30 years and is used in medical applications, industrial gauges, and hydrology.  Find the amount of Caesium-137 left from a 100-mg sample... more
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06/06/20

Find Cot A, sec A, csc A for triangle ABC. Let AB= 96.8418, BC=48.4209 and AC=83.865.
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06/05/20

Find the angle of C
Suppose we are given the three side lengths of a triangle: a=3, b=4, and c=square root of 13. Find the angle C opposite side c.
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06/05/20

(0 to +∞) ∫(dx) / (sqrt(x)(x+1)) , what is the result of this integral?
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06/04/20

f(x) = x^3 + 6x^2 - 15x - 40/x^3 + 7x^2 - 8x (1.how many holes are present in this rational function. (2. what are the holes in this rational function
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06/04/20

Please help! Statistics Question...
Let Y1, Y2 ... Yn denote a random sample from a population mean µ and variance σ². Consider the following three unbiased estimators for µ:µ-hat1 = 1/2 (Y1 + Y2), µ-hat2 = 1/4Y1 + (Y2... more
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06/04/20

What is the Formula of getting the x,y of a point when a ball is colliding inside the rectangle
Simulation Scenario:I have 900x600 size of a rectangleThe first angle of the ball when bouncing the edge of the rectangle is 40degrees.Starting position of the ball is:Px = 500Py = 450... more
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06/04/20

How do I solve this ?
Adam ant sits on the second hand of a clock, 12 cm from the center. What is his angular velocity in revolutions per minute ?
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06/04/20

Find the exact value of the expression
sin[sin^(-1)(3)/(5)+cos^(-1)(-(5)/(13))]
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06/04/20

Word problem equation

Suppose the population of Detroit was 1.5 million in 1990 and 1.0 million in 2002. If the city is losing population exponentially, how many years after 2002 will its population be 0.5 million?
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06/04/20

Find an equation of the tangent line to the graph of the function at the given point. f(x) = (x+1/x−3)^2 ; (7, 4)
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06/03/20

Suppose h = f∘g. Find h'(0) given that f(0) = 7, f '(2) = −9, g(0) = 2, and g'(0) = 9.
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06/03/20

a nice question about series
How many terms of the series do we need to add in order to find the sum to the indicated accuracy? (Your answer must be the smallest possible integer.) ∑n=1to ∞ (−1)^(n−1) 7/(n^4) ... more
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06/03/20

Write the trignometric expression as an algebraic expression
cos( Arc tan square root of 3 - Arc Cos x )
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06/02/20

Sampling distributions

A manufacturer knows that their items have a normally distributed length, with a mean of 15.1 inches and standard deviation of 2.8 inchesif seven items are chosen at random, what is the probability... more
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06/02/20

Solve the equation for y. (y -3)^2 = 4y -12
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