Which property states that the order of the addends does not affect the sum? commutative property of addition reflexive property
2 answers:
Answer:
Commutative property
Step-by-step explanation:
- Commutative property states that no matter how the addens are placed, the result of the operation (sum) remains the same.
- For <u>example</u>, given three numbers a, b and c, the result of
.
- Then, when you are solving a sum, the order of the elements does not matter. If we want to see this numerically, with an other example:
.
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Answer:
183 miles to the nearest mile.
Step-by-step explanation:
Distance =Speed X Time
Distance of Truck B from point A=45 X2 =90 miles
Distance of Truck C from point A=55 X2 =110 miles
Angles between them, BAC=132°
We want to find the Distance BC denoted by a between the trucks.
Using Cosine Rule,
a²=b²+c²-2bcCos A
=90²+110²-(2X90X110XCos132°)
=33448.79
a=√33448.79
BC=182.89 miles
The distance between the trucks is 183 miles to the nearest mile.
