2 1
6. In Fig. 13.29, the congruent parts are marked
Prove that ABAC = ACDB.
A
В.
С
D
Fig. 13.29
7. In Fig. 13.30, ABC is an equilateral triang
and AD is perpendicular to BC. Prove th
AADB = AADC in three different ways.
A
B D
C С
Fig. 13.30
r
.
12
in the hisen

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?