Answer: -1.5 ≤ x < 9.2
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
"All real numbers": we will use the variable x to represent all the real numbers.
"All real numbers that are greater than or equal to -1.5". This means that x is greater or equal (≤) to the number 1.5.
"And less than 9.2": less is represented with the symbol <
Mathematically speaking:
-1.5 ≤ x < 9.2
Feel free to ask for more if needed or if you did not understand something.
4 is because it is greater and less than
The measure of each exterior angle for a regular hexagon is 60⁰.
A hexagon is a six-sided polygon or 6-gon. The total of the internal angles of any simple hexagon is 720°.
In a regular Hexagon, all sides are same size and measure of all interior angles are same.
The sum of interior angles of hexagon is (n−2)×180⁰
where n is number of sides of polygon. (6−2)×180⁰ = 720⁰.
here n=6 because hexa means 6
Each interior angle =720⁰/6=120⁰
As we know that the sum of interior and exterior angles is 180⁰
Exterior angle + interior angle =180⁰
Exterior angle +120⁰ = 180⁰
Exterior angle =180⁰−120⁰ = 60⁰
Thus, the measure of each exterior angle for a regular hexagon is 60⁰.
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The cost of notebook is $3.49.
A word problem is a verbal description of a problem situation. It consists of few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.
For the given situation,
Let the cost of pencil box be x
Let the cost of notebook be y
Total cost = $6.28
⇒
The notebook cost $0.70 more than the pencil box,
⇒
Now substitute equation 2 in equation 1,
⇒
⇒
⇒
⇒
∴
⇒
Hence we can conclude that the cost of notebook is $3.49.
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Answer:
the note book costs $5.58
Step-by-step explanation:
you take 6.28 - 0.70
hope this helps ;)