From Questions to Solutions

What is the product of [tex]8.2 \times 10^9[/tex] and [tex]4.5 \times 10^{-5}[/tex] in scientific notation? A. [tex]36.9 \times 10^{-45}[/tex] B. [tex]12.7 \times 10^4[/tex] C. [tex]3.69 \times 10^5[/tex] D. [tex]3.69 \times

If the rectangle below is enlarged by a scale factor of 1.8, what will be the perimeter of the new rectangle? 39.4 units 43.2 units 45.6 units 48.2 units

A 35.0 mL solution of NaOH is neutralized with 36.9 mL of 0.250 M HCl. What is the concentration of the original NaOH solution?

Calculate the mole fractions, χacetone and χcyclohexane, in the vapor above the solution. Given: [tex]p^\circ_{\text{acetone}} = 229.5[/tex] torr and [tex]p^\circ_{\text{cyclohexane}} = 97.6[/tex] torr.

Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM. Find the values of \( \bar{d} \) and \( sd \). In

An elderly patient with chronic obstructive pulmonary disease (COPD) and pneumonia was admitted to the hospital. The patient reports a 40-year history of smoking. He is able to ambulate independently

Perform the operations on the vector [tex]\[ 5r - 3s + 8t \][/tex]. What is the magnitude and direction angle of the resultant vector? A. Magnitude: [tex]\( 10.8 \)[/tex], Direction

Refer to the table of body temperatures (degrees Fahrenheit). Is there a meaningful way in which each body temperature recorded at 8 AM is matched with the 12 AM temperature?

If ABCD is a parallelogram, what is the value of X? A. 69 B. 46 C. 37 D. 82 E. 38 F. 44

The diameter of a cookie is 2 inches. If [tex]\pi = 3.14[/tex], what is the area of the cookie, rounded to the nearest tenth? A. [tex]39.4 \, \text{in}^2[/tex] B. [tex]9.9

The vapor pressure of 1-propanol is 10.0 torr at 14.7 °C and 100.2 torr at 52.8 °C. Calculate the heat of vaporization of 1-propanol.

Ms. J. is a 74-year-old woman who is admitted directly to the medical unit after visiting her physician because of shortness of breath, increased swelling in her ankles and calves,

Julia has 48 inches of purple ribbon, 32 inches of green ribbon, and 96 inches of bright pink ribbon. She plans to cut the ribbons into pieces of equal length

Select the temperature scale that matches each boiling point for water. 1. Water boils at 373 [Celsius to Fahrenheit, Celsius to Fahrenheit, kelvins]. 2. Water boils at 100 [Celsius to

A local charity collected an estimated 38.2 million dollar last year . How is this amount written using science notation?