Is the solution to this equation positive or negative?
Question 2
2.
Is \frac{35}{27} a solution to the equation?
Question 3
3.
Is -\frac{35}{27} a solution to the equation?
Find the missing values in the equations
1
Question 4
4.
-3\cdot4=?
1
Question 5
5.
-3\cdot?=12
1
Question 6
6.
3\cdot?=12
1
1
1
Complete the sentences. Be prepared to explain your reasoning.
1
Question 10
10.
The sign of a positive number divided by a positive number is always:
1
Question 11
11.
The sign of a positive number divided by a negative number is always:
1
Question 12
12.
The sign of a negative number divided by a positive number is always:
1
Question 13
13.
The sign of a negative number divided by a negative number is always:
Han and Clare walk towards each other at a constant rate, meet up, and then continue past each other in opposite directions. We will call the position where they meet up 0 feet and the time when they meet up 0 seconds.
Han's velocity is 4 feet per second.
Clare's velocity is -5 feet per second.
1
Question 14
14.
Where is each person 10 seconds before they meet up?
1
Question 15
15.
When is each person at the position -10 feet from the meeting place?
It is possible to make a new number system using only the numbers 0, 1, 2, and 3. We will write the symbols for multiplying in this system like this: 1\otimes2=2. The table shows some of the products.
1
Question 16
16.
In this system, 1\otimes3=3 and 2\otimes3=2. How can you see that in the table?
1
Question 17
17.
What do you think 2\otimes1 is?
1
Question 18
18.
What about 3\otimes3?
1
1
A water well drilling rig has dug to a height of -60 feet after one full day of continuous use.
1
Question 21
21.
Assuming the rig drilled at a constant rate, what was the height of the drill after 15 hours?
1
Question 22
22.
If the rig has been running constantly and is currently at a height of -147.5 feet, for how long has the rig been running?
Use the coordinate grid in the applet to show the drill’s progress: