Can someone help me with this please :)
2 answers:
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Answer:
One-fifth
Step-by-step explanation:
step 1
Find the distance between the origin and the point B
the formula to calculate the distance between two points is equal to
we have
O (0,0) and B(10, –15)
substitute
step 2
Find the distance between the origin and the point B'
the formula to calculate the distance between two points is equal to
we have
O (0,0) and B'(2,-3)
substitute
step 3
Find the scale factor of the dilation
The scale factor is equal to divide the length of segment OB' by the length of segment OB
so
so
One-fifth
Answer:
We conclude that the first line number represents 1.5 + 2.5.
Step-by-step explanation:
Given the expression
It means the first segment must represent 1.5 units starting from 0.
Since we have to add 2.5 to 1.5, so the next segment must represent 2.5 units, starting from 1.5
Combining them would make
Now, if we observe the first number line,
- The first arrow represents the 1.5 units starting from 0.
- The second arrow represents the 2.5 units starting from 1.5.
- The combined units of both arrows represent the length of 4 units. i.e. 1.5 + 2.5 = 4
Thus, we conclude that the first line number represents 1.5 + 2.5.
The correct line number is also attached below.
