From Questions to Solutions

A sample of [tex]C_xH_y[/tex] underwent combustion analysis and yielded 36.6 g of carbon dioxide and 18.0 g of water. What is the empirical formula?

The formula F = 9/5 C + 32 converts temperatures in the Celsius scale to the Fahrenheit scale. Find the equivalent Fahrenheit temperature for the Celsius temperature of 15 degrees

Given that the specific heat of chromium is [tex]0.455 \, \text{J/g} \cdot \text{K}[/tex], find the final temperature after [tex]35.9 \, \text{J}[/tex] of energy is removed from [tex]11.7 \, \text{g}[/tex] of

Use the functions [tex]f(x) = 2x^2 + 3[/tex] and [tex]g(x) = 3x - 4[/tex] to evaluate the composite function [tex]f(g(2))[/tex]. A. 62 B. 54 C. 48 D. 46

If your powerboat is less than 39.4 feet long and you are underway at night, what lights are you required to display?

The L.C.M. of two numbers is 495 and their H.C.F. is 5. If the sum of the numbers is 100, then their difference is equal to: A) 90 B) 46

What is the order from coolest to warmest? - 34 degrees Fahrenheit - 100 degrees Fahrenheit - 185 degrees Fahrenheit - 0 degrees Celsius - 37 degrees Celsius - 100

The high temperatures (in degrees Fahrenheit) of a random sample of 10 small towns are: 98, 98.4, 96.5, 97.5, 99.8, 96.7, 98.3, 96.4, 97, 98.9 Assume high temperatures are normally

Describe each number in at least one other way. A) 35.8 million B) 115.2 thousand C) 97.8 ten million

Evaluate the expression [tex]5x - 29.4 + \frac{1}{2}x[/tex] when [tex]x = 5[/tex]. A. -1.9 B. 0.6 C. 36.9 D. -1.1

Piper used \(\frac{1}{5}\) meter of ribbon to create a border around a triangle. If each side of the triangle is the same length, how much ribbon did Piper use for

A yard is equal in length to three feet. The function [tex]$f(x)$[/tex] takes a measurement in yards (as input) and returns a measurement in feet (as output). [tex] \[ \begin{array}{clc}

Consider an airplane flying at a certain altitude. The outside pressure and temperature are 1.5089 N/m² and 220 K, respectively. What are the pressure and density altitudes? A. 1.5089 N/m²,

A 30.2 g sample of copper at 99.8 °C is carefully placed into an insulated container containing 177 g of water at 18.5 °C. Calculate the final temperature when thermal

At the carnival, a baby was given a helium balloon whose pressure equaled the atmospheric pressure at the carnival, which was 102.7 kPa. However, the baby wasn't paying attention, and