-12.8 - (-7.4) + 16.7 Expand out the brackets
-12.8 + 7.4 + 16.7 Simply add all
= 11.3
A
The measure of one of its angles is 150°. The correct option is D.
<h3>How to calculate the angle?</h3>
The value of angles in a polygon is calculated by using the formula:
= (n - 2) × 180°
where n *+ number of sides
This will be illustrated as:
= (n - 2) × 180°
= (12 - 2) × 180°
= 10 × 180°
= 1800°
Since it has 12 sides, the value of each angle will be:
= Total angle / Total sides
= 1800° / 12
= 150°
The angle is 150°.
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It is 2 lol also use a calculator it’s wayyy easier this is like the easiest equation every
Speed of Carmen = 40km/h
and speed of Carmella = 60km/h
Step-by-step explanation:
Let the speed of Carmen = x km/h
Carmella speed will be (x + 20)km/h
Distance = 120 km
Time between Carmen and Carmella = 1 hour
Let the time taken by Carmen be T1
and Carmella be T2
As there is 1 hour difference so
We have not considered 60 as it will become negative value and negative value is not possible in distance
Speed of Carmen = 40km/h
Speed of Carmella = 40 + 20 = 60km/h
Answer:
Step-by-step explanation:
= = = =