Answer:
$56.16
Step-by-step explanation:
74.88 times 0.75 =56.16
THE PERIMETER OF THE PRECEDING FIGURE 17.8 METERS
Answer:
Step-by-step explanation:
in tri ADC and tri BDC
∠ADC =∠BDC = 90
DC is common
AD = BD (given)
triangle ADC ≅ tri BDC by SAS congruency
hence AC = BC by CPCT ( congruent parts of congruent triangles)
hence, BC = 13
Answer:
10 years old
Step-by-step explanation:
The difference in ages is 60 -30 = 30 years. When mom was 4 times daughter's age, the difference in their ages was 3 times the daughter's age.
The age difference was 30 years at that time, so the daughter was 10 years old.
Cos (x) = adj/hyp
cos (x) = 13/25
x = cos⁻¹(13/25)
x= 58.7° (nearest tenth)
