Answers by Alexander R Johansen

Answers by Alexander R Johansen

My science teacher trying to be cool

answered Mar 22, 2021

3 votes

182k views

Multiply (2 4/5) (-5 2/3)

answered Dec 10, 2020

1 vote

159k views

Write the equation of the line that contains slope of 4 and a coordinate of (3,11)

answered Oct 21, 2020

2 votes

213k views

Let λ > 0 be a constant. Consider the function f(x) = (λ/2)e^(−λ|x|) , for − [infinity] < x < [infinity] . (a) Is f(x) a pdf? Why? (b) If your answer is "yes" for part (a), find the corresponding µ and σ^2 (as simple functions of λ). If your answer is "no" for part (a), find the integral (from -[infinity] to [infinity]) of xf(x)dx and the integral(from -[infinity] to [infinity]) of x^2f(x)dx (as simple functions of λ).

answered Jul 29, 2020

0 votes

177k views

I don’t know what 3 3/5 + 4 4/15 equals

answered May 18, 2020

5 votes

216k views

Follow the Order of Operations to solve the expression: 6 + 10 ÷ 2 - 1 * 4

answered Feb 21, 2020

1 vote

134k views

PLEASE HELP ME ASAP How many solutions does the equation 6s − 3s − 9 = −2 + 3 have? Only one None Two Infinitely many

answered Nov 24, 2019

1 vote

90.7k views

A box contains 8 red marbles, 6 white marbles, and 5blue marbles. If a marble is randomly selected from the box , whatbis probability that it is blue?

answered Feb 28, 2019

3 votes

233k views

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