volume_mute
Assign true, false, or unknown to the following equations
publish date: 2023/09/12 08:31:00 GMT+10
volume_mute- (1)
6 + 3 = 9 - (2) 2 + 4 = 7
- (3) x + 5 = 15
Please drag and drop the selected option in the right place or type it instead
false
true
unknown
Correct Answer
(1) true
(2) false
(3) unknown
Explanation
Obviously, equation 1 is true and equation 2 is false. Equation 3 can be neither true nor false because we don't know what number x represents.
Reference
Mathematics for college students