Answer:
1) commutative property of addition
2)associative property of addition
3) commutative property
Step-by-step explanation:
1) You switched the numbers in the parenthesis, which in this case is 3 and 4.
2) You just moved the parenthesis which in this case is (1+2) to (2+3)
3) You switched the numbers in the equation
Answer:
A scale drawing of a playground is 8 inches wide by 11 inches long. The actual playground ... The scale of a map says that 6 cm represents 15 km. What distance on ... car in centimeters. The car is 4.4 meters long and 1.4 meters tall. ... 10 Qs. Scale Drawings. 7.4k plays · 15 Qs. Scaled Copies and Scale Factor. 13.3k plays.
Step-by-step explanation:
Find an object that has a length dimension (length, width or height) of 1 mm. ... d 6.2 m (cm) ... 15 Which unit of length (mm, cm, m or km) would be most suitable for ... diagram and show all the measurements you found, including the units. ... the perimeter of each shape by using a ruler to measure each side to the nearest.
Answer:
what graph
Step-by-step explanation:
Explanation:
The Law of Cosines specifies the relationship between the three sides of a triangle and any one of the angles. If the sides are designated a, b, and c, and the angle opposite side c is C, then it tells you ...
c² = a² + b² -2ab·cos(C)
This relationship can be used to find any and all angles, given the three sides of a triangle. Or, having found one angle using the Law of Cosines, the others can be found using the Law of Sines:
sin(A)/a = sin(B)/b = sin(C)/c
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Typically, inverse functions are required. That is, from the Law of Cosines, ...
C = arccos((a² +b² -c²)/(2ab))
And from the Law of Sines, ...
A = arcsin(a/c·sin(C))
B = arcsin(b/c·sin(C))
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<em>Note on solving triangles</em>
It often works best to make use of exact values where possible. It is also a good idea to start with the longest side/largest angle. Of course, once you have two angles the other can be found as the supplement of their sum.