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Chapter 1: Q. 1.35 (page 23)

For each of the following, indicate if the answer has a positive or negative sign:1.4
a. Two negative numbers are added.
b. A positive and negative number are multiplied.

Short Answer

Expert verified

a. The sign will be negative when two negative numbers are added.

b. The sign will be negative when a positive and negative number are multiplied.

Step by step solution

01

Part (a) step 1: Given Information

We need to find the sign when two negative numbers are added.

02

Part (a) step 2: Explanation 

When we add two negative numbers always results to a negative number, as exemplified by some examples: -3+-5=-8and -0.1+-4=-4.1.

03

Part (b) step 1: Given Information

We need to find sign when a positive and negative numbers are multiplied.

04

Part (b) step 2: Explanation

Any two numbers with opposing sign always yield a negative number. For examples: -2脳17=-34and 5脳-0.2=-1.

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Most popular questions from this chapter

Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:1.2

a. Every spring, you have congestion and a runny nose.

b. An overweight patient decides to exercise more to lose weight

c. Many research studies have linked obesity to heart disease.

Evaluate each of the following:1.4

a.4脳-8=___.

b.-12-48=___.

c.localid="1651763379682" -168-4=___.

What is the place value for the bold digit?

a.7.3288

b. 16.1234

c.4675.99

Read the labels of some items found in your medicine cabinet. What are the names of some chemicals contained in those items?

Evaluate each of the following:

a.-11--9=___.

b.34+-55=___.

c.-568=___.
See all solutions

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