Chapter 1: Q.1.2 (page 3)
Ask two of your friends (not in this class) to define the terms in problem 1.1. Do their answers agree with the definition you provided?
Yes, their answers are given as per the definition provided.
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
For each of the following, indicate if the answer has a positive or negative sign:
a. Two negative numbers are added.
b. A positive and negative number are multiplied.
Write each of the following in scientific notation:
a.
b.role="math" localid="1651824402692"
c.
d.
e.
f.
Identify each activity, a to f, as an observation, a hypothesis, an experiment, or a conclusion. Lucia wants to develop a process for dyeing shirts so that the color will not fade when the shirt is washed. She proceeds with the following activities:
a. Lucia notices that the dye in a design fades when the shirt is washed.
b. Lucia decides that the dye needs something to help it combine with the fabric.
c. She places a spot of dye on each of the four shirts and then places each one separately in water, saltwater, vinegar, and baking soda and water. d. After one hour, all the shirts are removed and washed with a detergent.
e. Lucia notices that the dye has faded on the shirts in water, saltwater, and baking soda, whereas the dye did not fade on the shirt soaked in vinegar.
f. Lucia thinks that the vinegar binds with the dye so it does
not fade when the shirt is washed.
a. At a local hospital, babies were born. If were boys, what percentage of the newborns were boys? Express your answer to the one's place.
b. An alloy contains pure gold and pure zinc. What is the percentage of zinc in the alloy? Express your answer to the one's place.
c. A collection of coins contains pennies, dimes, and 6 quarters. What is the percentage of pennies in the collection? Express your answer to the one's place.
a. A clinic had patients on Friday morning. If patients were given flu shots, what percentage of the patients received flu shots? Express your answer to the one's place.
b. An alloy contains 56 g of pure silver and 22 g of pure copper. What is the percentage of silver in the alloy? Express your answer to the one's place.
c. A collection of coins contains nickels, quarters, and dimes. What is the percentage of dimes in the collection? Express your answer to the one's place.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
