Two rectangles are similar. one has a length of 11 cm and a width of 10 cm, and the other has a width of 7 cm. find the length of the second triangle. round to the nearest tenth if necessary.
a)5.8 cm
b)8.9 cm
c)6.4 cm
d)7.7 cm

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?