Which of the following are polyhedra? Why or why not?

exercise 1.3. Using the method we saw in class, show that 1 1- 2+3 – 4+ 5 – 6 + 7 – 8..., 4 and 1 (2 · 1) – (3 - 2) + (4 · 3) – (5 · 4) + (6 - 5) – (7 · 6) -.. 4

3. 4. 1. B. B%3D 0. 1. 1- Caicuiate CATB) c, POssibie 3.

Let A = PDP - 1 and P and D as shown below. Compute A*. 1 2 2 0 P = D = 2 3 0 3 ... %3D (Simplify your answer.)

If (a-b)/c = (c-b)/a = 0.1, what are a, b, and c?

Clackamas Comm... Home - FAFSA on... 70 Learn Online at C... The table shows the number of deaths in the U.S. in 2020 due to a variety of causes. The population of the United States in 2020 was about 329 million people. These I data are real, from the CDC and other government agencies. Cause Deaths COVID-19 350,831 Firearms 45,222 Motor vehicles 40,698 Motorcycle driver 5,289 Aviation 332 Tornado 78 Skydiving 11 a) What surprises or stands out to you when you look at this table? We're asking what you think about this data. b) What is the probability that a member of the US population died in a motor vehicle incident in 2020? Give your answer as a fraction. c) Assuming these data--and the US population--are about the same now as they were in 2020, what's the probability YOU will die in a tornado this year? Explain. d) Some people say riding a motorcycle is safer than skydiving. Does this data support that claim? Put another way: we can SEE that the number of people who died riding a…

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Compute the coefficients b, and bz for the regression model y; = b0 + b,x1i + b2x2i given the summary statistics shown below. = 0.60, sx. = 100, sx, = 400, sy = 500 Sy = 500 a. fx,y = 0.30, Tx2y = 0.80, (x,x2 = 100, = 400, b. rx,y = - 0.30, rx,y = - 0.80, rx, x, C. Ix, y = 0.90, rx2y d. fx,y = 0.60, Sx, = 400, s, = 500 Sx, = 0.35, rx, x, = 0.30, sx, = 100, sx, = 0.30, rx,y = - 0.90, rx,×2 = - 0.60, sy. = 100, s, = 400, s, = 500 , Sy=

The boxplots for the grade scores in the midterm exam in a Calculus I class for two different classes is attachedClass 1: Q1= 65 M= 70 Q3 = 80Class 2: Q1= 60 M= 70 Q3 = 75Which class is likely to have a greater percentage of students with grades smaller or equal to 70? Class 2 Class 1      It is impossible to tell. Neither Both classes are about equal. Which class has 50% percentage of students with grades between 70 and 80? Class 2 Both classes are about equal.      Neither It is impossible to tell. Class 1 For which class did 25% of students receive grades between 60 and 70? Both classes are about equal. Class 1      Class 2 Neither It is impossible to tell.

E) what other questions might this raise about the results ?