From Questions to Solutions

The normal boiling point of liquid methanol is 338 K. Assuming that its molar heat of vaporization is constant at 36.6 kJ/mol, what is the boiling point of CH₃OH when

Lucy has 4 inches of ribbon that she wants to cut into 6 equal-sized pieces. What is true about the length of each piece of ribbon? A) Each piece has

Which expression is equivalent to [tex]$30\left(\frac{1}{2} x-2\right)+40\left(\frac{3}{4} y-4\right)$[/tex]? A. [tex]$45xy - 220$[/tex] B. [tex]$15x - 30y - 220$[/tex] C. [tex]$15x + 30y - 220$[/tex] D. [tex]$15x + 30y - 64$[/tex]

Given that ABCD is a rhombus, what is the value of x? A. 29 B. 23 C. 46 D. 38 E. 45 F. Cannot be determined

Select the correct answer. Points [tex]$A$[/tex] and [tex]$B$[/tex] lie on a circle centered at point [tex]$O$[/tex]. If [tex]$OA = 5$[/tex] and [tex]$\frac{\text{length of } \widehat{AB}}{\text{circumference}} = \frac{1}{4}$[/tex], what is the

Each costume needs 46 centimeters of red ribbon and three times as much yellow ribbon. What is the total length of ribbon needed for 64 costumes? Express your answer in

What is the volume of a cone with a base whose radius is 7 feet and height is 5 feet? A. 769.3 ft³ B. 36.6 ft³ C. 183.2 ft³ D.

If a flagpole's shadow is 253.1 ft, and a man’s height is 6.2 ft with a shadow of 36.6 ft, how tall is the flagpole?

68.7% of the population has brown eyes. A convention has 6000 people in attendance. Find the standard deviation for the number of brown-eyed people at such gatherings of 6000 people.

Estimate the following square root. [tex]\sqrt{1, 398} \approx[/tex] A. 38.1 B. 37.2 C. 37.4 D. 36.9

Calculate the gravitational field at the pendulum’s location. A pendulum with a length of 36.9 cm has a period of 1.22 s.

According to the following reaction, how many grams of sulfur are formed when 37.4 g of water are formed? [tex]\[ 2 \, \text{H}_2\text{S} (g) + \text{SO}_2 (g) \rightarrow 3 \,

The per capita consumption of red meat by people in a country in a recent year was normally distributed, with a mean of 107 pounds and a standard deviation of

A 28.4 g sample of an unknown metal is heated to 39.4 °C and then placed in a calorimeter containing 50.0 g of water. The temperature of the water increases

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