9) Determine whether the given procedure results in a binomial distribution. If not, state the reason why. Spinning a roulette wheel 7 times, keeping track of the winning numbers. A) Not binomial: there are more than two outcomes for each trial. B) Not binomial: the trials are not independent. C) Not binomial: there are too many trials. D) The procedure results in a binomial distribution.

(d) The equation \( (x+2)-3 \sqrt{(x+2)}-4=0 \) has only one real solution. Find the value of \( x \). (Hint: Let \( a=\sqrt{(x+2)}) \)

Forty-six students go on a field trip. The students are divided into groups of 6 students. How

Find the velocity and position vectors of a particle with acceleration \( \mathbf{a}(t)=3 \mathbf{k} \), and initial conditions \( \mathbf{v}(0)=4 \mathbf{j}+3 \mathbf{k} \) and \( \mathbf{r}(0)=-5 \mathbf{i}+5 \mathbf{j}-3 \mathbf{k} \). \( \mathbf{v}(t)= \) \( 3+3 t \) \( \mathbf{r}(t)=-5 \) \( 3 t+\frac{3}{2} t^{2}-3 \) Submit answer Next item

2 vilken av graferna kan beskrivas med formeln \( \begin{array}{ll}\text { a) } y=14 x & \text { b) } y=400 x+2000\end{array} \)

Find the indicated area under the curve of the standard normal distribution; then convert it to a percentage and fill in the blank. About \( \% \) of the area is between \( z=-2 \) and \( z=2 \) (or within 2 standard deviations of the mean). About \( \square \% \) of the area is between \( z=-2 \) and \( z=2 \) (or within 2 standard deviations of the mean). (Round to two decimal places as needed.)