2 minutes 30 seconds - 3 minutes
Answer:
C.
Step-by-step explanation:
Hoped I helped! Im Eve btw Hope you have a great day and consider marking this brainliest
You can calculate it using the law of cosines: c^2=a^2+b^2-2*a*b*cos(C)
your triangle is
CD=15=a
CE=?=b
DE=CE+3=b+3=c
and C=90°
-> insert those values, with c substituted with b+3 to remove c
c^2=a^2+b^2-2*a*b*cos(C)
(b+3)^2=15^2+b^2-2*15*b*cos(90)
cos(90)=0->
(b+3)^2=15^2+b^2
b^2+2*3*b+3^2=225+b^2
6b+9=225
6b=216
b=36=CE
DE=CE+3=36+3=39
3 : 4 because 27 : 36 can be reduced to the lowest terms by dividing both terms by the GCF = 9
Answer: i think it would be D
Step-by-step explanation:
