Answer: Answer C , Only student 2, because dilation preserve angle measures and side lengths are proportional
Answer:
Step-by-step explanation:
The slope-intercept form of an equation of a line:
<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept</em>
The formula of a slope:
We have two points (2, -2) and (4, -1).
Substitute:
Put the value of a slope and the coordinates of the point (2, -2) to the equation of a line:
<em>subtract 1 from both sides</em>
Finally:
If U={1,2,3,4,5) and A={2,4) then A' should be
Ans» d.{1,3,5}
Answer:
10
Step-by-step explanation:
The number of tiles in the design is 1 + 2 + 3 + ...
We can model this as an arithmetic series, where the first term is 1 and the common difference is 1. The sum of the first n terms of an arithmetic series is:
S = n/2 (2a₁ + d (n − 1))
Given that a₁ = 1 and d = 1:
S = n/2 (2(1) + n − 1)
S = n/2 (n + 1)
Since S ≤ 60:
n/2 (n + 1) ≤ 60
n (n + 1) ≤ 120
n must be an integer, so from trial and error:
n ≤ 10
Mr. Tong should use 10 tiles in the final row to use the most tiles possible.
Answer:
a or c
Step-by-step explanation:
