6:15:21
6:15:21= 2:5:7
<em>(when divided by 3)</em>
Math is used in construction everywhere.Math is used in construction to measure parts, how many feet, inches, etc. to do and how high to go up.A great example is in the scaling of blueprints, where an architect creates a scale model of the building so that it can fit on paper.
The correct answer is B. -12
Just reflect C and D across the y-axis
C is (-4, -4) so A is (-4, 4)
D is (4, -4) so B is (4, 4)
27.3%
hope this helps leave a 5-rate and thanks!
