From Questions to Solutions

If [tex]$f(x) = 3x^2 - 4x + 2$[/tex], what is [tex]$f(-2)$[/tex]? A. -18 B. -2 C. 6 D. 22 E. 46

Which of the numbers below are whole numbers? Check all that apply. A. 87 B. 650 C. 99.8 D. 442.49 E. [tex]\frac{1}{10}[/tex] F. 6282

How many grams of iron(III) oxide are there in 0.500 mol of this substance? A. 160. g B. 63.8 g C. 35.9 g D. 79.9 g E. 51.9 g

One percent of a measured amount of Ar(g) escapes through a tiny hole in 77.3 seconds. One percent of the same amount of an unknown gas escapes under the same

Question 5 (1 point) You push a 34.2 kg box with a force to 97.7 N. At what rate will the box accelerate? Your Answer:

U.S. energy consumption by energy source, 2015: - Total: 97.7 quadrillion Btu - Geothermal: 2% - Natural gas: 29% - Solar: 6% - Wind: 19% - Petroleum: 36% - Biomass

Al(OH)₃ + 3 HCl → AlCl₃ + 3 H₂O How many moles of water are produced by the reaction of 39.3 g of Al(OH)₃? A) 1.00 mol B) 2.00 mol

How many millimeters are in 36.6 dL? A. 366 mm B. 3660 mm C. 36600 mm D. 366000 mm

A train can travel 39.3 miles per hour. At this speed, about how far can the train travel in 6.5 hours?

The relationship between the vapor pressure of a liquid and temperature can be expressed by the Clausius-Clapeyron equation. Ethanol (\(C_2H_5OH\)) has a normal boiling point of 78.3°C with \(\Delta H_{vap}

The specific heat of liquid ethanol, \(\text{C}_2\text{H}_5\text{OH}(l)\), is 2.46 J/g·°C, and the heat of vaporization is 39.3 kJ/mol. The boiling point of ethanol is 78.3 °C. What amount of enthalpy

Paula cut ribbon from a spool for a craft project. Each piece of ribbon decreased the length of the ribbon remaining on the spool by 1.2 feet. When Paula finished,

The high temperatures (in degrees Fahrenheit) of a random sample of 48 small towns are given below. Assume high temperatures are normally distributed. Based on this data, find the 95%

Determine the sum: [tex]26.5 \times 10^4 + 9.4 \times 10^4[/tex]. Write your answer in scientific notation. A. [tex]17.1 \times 10^4[/tex] B. [tex]35.9 \times 10^9[/tex] C. [tex]3.59 \times 10^5[/tex] D. [tex]17.1

A chair is pulled by two horizontal forces. The first force is 122 N at an angle of [tex]$43.6^{\circ}$[/tex], and the second is 97.6 N at an angle of [tex]$49.9^{\circ}$[/tex].