From Questions to Solutions

The length of a rectangle is 7.8 cm more than 4 times the width. If the perimeter of the rectangle is 94.6 cm, what are its dimensions? Select one: A.

In the laboratory, a student finds that it takes 38.6 Joules to increase the temperature of 10.5 grams of solid tin from 21.0 to 39.4 degrees Celsius. The specific heat

How many grams of glucose, dissolved in 350.0 g of water, are needed to make a 1.55 m solution? 1) 279 2) 45.5 3) 145 4) 97.7

Water boils at [tex]100^{\circ}[/tex] Celsius or [tex]212^{\circ}[/tex] Fahrenheit. Water freezes at [tex]0^{\circ}[/tex] Celsius or [tex]32^{\circ}[/tex] Fahrenheit. If the weather forecaster says it will be [tex]25^{\circ}[/tex] Celsius today, write and solve

Which of the following formulas determines your estimated maximum heart rate? A. 220 - your age B. 200 - your age C. 200 + your age D. 220 + your

The average weight of a banana is 100 grams. An agricultural scientist buys bananas from a supermarket. Their weights, in grams, are as follows: \[ w \leftarrow c(102.5, 102.9, 99.9,

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

Heat is measured in: A. g/cm\(^3\) B. degrees Celsius C. degrees Celsius and degrees Fahrenheit D. degrees Fahrenheit E. calories

Sasha buys two ribbons of equal length. She cuts 9 pieces of the same length, \( L \), from the first ribbon and finds that 5 inches are left over.

Jackie cut a 2-yard spool into 5 equal lengths of ribbon. a. What is the length of each ribbon in yards? Draw a tape diagram to show your thinking. b.

Calculate [tex]\Delta H[/tex] for the following reaction: [tex]S_\omega + SO_2(0) + 2 O_2(0) \rightarrow 2 SO_2(0)[/tex] [tex]\Delta H = ?[/tex] Given the reference reactions below: 1. [tex]S_\omega + O_2(\hat{y}) \rightarrow

7. How many moles of oxygen will occupy a volume of 2.5 liters at 97.6 kPa and 25.0°C?​

Suppose that a large study of women's size 6 jeans revealed that the mean hip measurement was 36.9 inches with a standard deviation of 0.8 inches.

A 35.9 g mass is attached to a horizontal spring with a spring constant of 18.4 N/m and released from rest with an amplitude of 39.5 cm. What is the

What is the rate of decay, [tex] r [/tex] (expressed as a decimal), for data best modeled by the exponential function [tex] y = 63.4(0.92)^x [/tex]? A. [tex] r =