From Questions to Solutions

Jelly has nine pieces of ribbon. She recorded the length of each piece in the line plot shown. What is the total length of the three longest pieces of ribbon?

What is the molarity of a solution made by dissolving 39.4 g of lithium chloride in enough water to make 1.59 L of solution? [tex]LiCl ; 42.39 \, \text{g/mol}[/tex]

Find the indicated 1st quartile (Q1) score based on a normal distribution with a mean of 100 and a standard deviation of 15. A) 85.0 B) 89.2 C) 93.4 D)

Assume that between 1967 and 2015, the volume of UK exports of goods (in index number form, with 2013 = 100) grew from 13 to 97.8. (a) Calculate the average

Calculate [tex]\Delta H[/tex] for the following reaction: [tex]S_{(s)} + 2 SO_3(\varphi) \rightarrow 3 SO_2(\underline{0}) \quad \Delta H=?[/tex] Given the reference reactions below: [tex]\begin{array}{ll} S(\omega) + O_2(g) \rightarrow SO_2(g) & \Delta

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

The compound [tex]A_2X[/tex] is [tex]36.9\%[/tex] [tex]A[/tex] by mass. What mass of the compound contains [tex]44.1 \, \text{g} \, A[/tex]? A. [tex]36.9 \, \text{g}[/tex] B. [tex]16.3 \, \text{g}[/tex] C. [tex]239 \,

What is the volume of a hemisphere with a radius of 39.4 ft, rounded to the nearest tenth of a cubic foot?

Find the area of a sector of a circle with radius [tex]r = 15.0 \, \text{m}[/tex] and central angle [tex]\theta = 20^\circ[/tex]. If necessary, express the answer to the nearest

Calculate the following: \[ 36.9 - 34.5 = \]

What is the molarity of a solution made by dissolving 39.4 g of lithium chloride in enough water to make 1.59 L of solution?

What is 978 cm\(^3\) expressed in liters? A. 0.978 L B. 9.78 L C. 97.8 L D. 978, 000 L

**Problem 1:** Ammonium nitrite decomposes to give off nitrogen gas and liquid water. How many grams of ammonium nitrite must have reacted if 2.58 L of gas was collected over

The formula to convert Celsius to Fahrenheit is [tex]F = \frac{9}{5}C + 32[/tex]. Convert 45 degrees Fahrenheit to Celsius. Round to the nearest degree.

Select the correct answer. Consider the given function of an arithmetic sequence: [tex]f(n) = 7n - 3[/tex]. What is the [tex]8^{\text{th}}[/tex] term of the sequence? A. 67 B. 46 C.