∆ABC and ∆PQR are similar. ∆ABC is dilated by a scale factor of 1.5 to form ∆PQR . The side lengths of ∆ABC are AB =5 units; BC = 4.2 units; and AC = 4 units. Find the length of PQ, QR and PR. A. PQ = 6, QR = 6.3 and PR = 7.5.
B. PQ = 7.5, QR = 6 and PR = 6.3.
C. PQ = 6.3, QR = 7.5 and PR = 6
D. PQ = 7.5, QR = 6.3 and PR = 6.

In the figure below, segment ac is congruent to segment ab: triangle abc with a segment joining vertex a to point d on side bc. side ab is congruent to side ac which statement is used to prove that angle abd is congruent to angle acd? segment ad bisects angle cab. triangle acd is similar to triangle abd. segment ad is congruent to segment ac. angle cab is congruent to angle cba.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

An octagonal prism has jow many lateral faces?