Explain why a product can be written as a repeated addition.

Write the number represented by the Roman numeral: XXVIII + V.

Find all solutions in the interval $[0,2 \pi)$, correct to five decimal places:

$$5 \cos 2 x=2$$

In the earlier exercises from the previous chapter, we looked at data from an experiment to determine whether visual information about an image helped people "see" the image in 3D.

2-Sample t-interval for $\mu_1 - \mu_2$

Cont level= 90% df = 70

$\mu$(NV) - $\mu$(W) interval: (0.55, 5.47)

Explain carefully what the 90% confidence level means.

In this exercise, write the number represented by the Roman numeral.

VI

Why did it take astronomers until 1995 to discover the first exoplanet orbiting another star like the Sun?

Find the indicated quantities

Measurements show that the temperature of a distant star is presently $9800\degree C$ and is decreasing by $10\%$ every $800$ years. What will its temperature be in $4000$ years?

A planet of mass $4 \times 10^{24} \mathrm{kg}$ is at location $\langle 5 e 11,-2 e 11,0\rangle$ m. A star of mass $5 \times 10^{30} \mathrm{kg}$ is at location $\langle- 2 e 11,3 e 11,0\rangle \mathrm{m}.$ It will be useful to draw a diagram of the situation, including the relevant vectors. What is the (vector) force exerted on the planet by the star?

If 60 C of charge pass through an electric conductor in 30 seconds, determine the current in the conductor.

Name as many enzymes of the intestinal brush border as you can, and identify the substrate or function of each.

Find the value for the given Roman numeral: IC

What is removed during each of the three stages of wastewater treatment: primary, secondary, and tertiary? During which stage would you expect items to be recovered that were accidentally flushed, such as jewelry or coins?

Write the first five terms of the sequence.

$$a_0=48$$

$$a_n=\frac{1}{2} a_{n-1}+2$$

Calculate the magnitude of the electric field at a distance of $1.5 \mathrm{~m}$ from a point charge with $q=3.5$ C.