According to recent typical test data, a Ford Focus travels $0.250 \mathrm{mi}$ in $19.9 \mathrm{~s}$, starting from rest. The same car, when braking from $60.0 \mathrm{mph}$ on dry pavement, stops in $146 \mathrm{ft}$. Assume constant acceleration in each part of its motion, but not necessarily the same acceleration when slowing down as when speeding up.
(a) Find this car's acceleration while braking and while speeding up.
(b) If its acceleration is constant while speeding up, how fast (in mph) will the car be traveling after $0.250 \mathrm{mi}$ of acceleration?
(c) How long does it take the car to stop while braking from $60.0 \mathrm{mph}$ ?

Which amino acid will a tRNA molecule be carrying if its anticodon is the following?

a. GGG

b. GAC

c. AUA

d. CGA

Write the word from the word web that best completes each sentence. Use context clues to help you. If necessary, consult a dictionary or glossary.

The store has ____________ this brand of clothing.

We have specified the "tailedness" of a hypothesis test for a population mean with null hypothesis $H_{0}: \mu=\mu_{0}$. For each exercise. a. draw the ideal power curve. b. explain what your curve in part (a) portrays. two-tailed

How would you respond to a stockout of your brand choice (or model) of dress shirt/blouse? What factors other than product category would affect your response?

Different varieties of the tropical flower Heliconia are fertilized by different species of hummingbirds. Researchers believe that over time, the lengths of the flowers and the forms of the hummingbirds' beaks have evolved to match each other. Here are data on the lengths in millimeters for random samples of two color varieties of the same species of flower on the island of Dominica.

H. caribaea red

$$\begin{array}{llllllll}41.90 & 42.01 & 41.93 & 43.09 & 41.17 & 41.69 & 39.78 & 40.57 \\ 39.63 & 42.18 & 40.66 & 37.87 & 39.16 & 37.40 & 38.20 & 38.07 \\ 38.10 & 37.97 & 38.79 & 38.23 & 38.87 & 37.78 & 38.01 & \end{array}$$

H. caribaea yellow

$$\begin{array}{llllllll} 36.78 & 37.02 & 36.52 & 36.11 & 36.03 & 35.45 & 38.13 & 37.10 \\ 35.17 & 36.82 & 36.66 & 35.68 & 36.03 & 34.57 & 34.63 & \end{array}$$

Construct and interpret a 95% confidence interval for the true difference in the mean lengths of these two varieties of flowers on the island of Dominica.

The life of a certain brand of AA battery is normally distributed with $\mu=8$ hours and $\sigma=1.5$ hours. Find each probability. The battery will last less than 6 hours.

During the course of a year, the number of volunteers available to run a food bank each month is modeled by $V(x)$, where

$$V(x)=2 x^2-32 x+150$$

between the months of January and August. Here $x$ is time in months, with $x=1$ representing January. From August to December, $V(x)$ is modeled by

$$V(x)=31 x-226.$$

Find the number of volunteers in each of the following months.

Sketch a graph of $y=V(x)$ for January through December. In what month are the fewest volunteers available?

Tell whether a parallelogram with the given vertices is a rectangle, rhombus, or square. Give all the names that apply. $(-3,1),(-1,3),(1,1)$, and $(-1,-1)$

What is the magnitude of the electric field 200 mm away from a particle carrying $3.0 \mu \mathrm { C }$ of charge?

A simple pin-connected truss is loaded and supported as shown . All members of the truss are aluminum $[E=10,000 \mathrm{ksi}]$ pipes with an outside diameter of $4.00 \mathrm{in}$. and a wall thickness of $0.226$ in. Consider all compression members, and determine the minimum factor of safety for the truss with respect to failure by buckling.

a. Identify the hypothesis p. b. Identify the conclusion q. If a polygon is a square, then it has four right angles.

The life of a certain brand of AA battery is normally distributed with $\mu=8$ hours and $\sigma=1.5$ hours. Find each probability. The battery will last between 8 and 9 hours.

Of the volunteers donating blood in a clinic, 80% have the Rhesus (Rh) factor present in their blood. What is the smallest number of volunteers who must be selected if we want to be at least 90% certain that we obtain at least five donors with the Rh factor?