Answer:
Step-by-step explanation yes
A:B = 2:3
A=126
B=?
126/2=63
63x3=189
A=126
B=189
A:B = 126:189
Last one:
In the picture a=2, b=4a, b=4•2=8
1st picture a=3, b=4a, b=4•3=12
2nd picture a=0.5, b=4•0.5=2
3rd picture a=2.5, b=4•2.5=10
4th picture a=4, b=4•4=16, but in the picture b=10 therefore, this rectangular is NOT similar to rectangular ABCD.
Answer: the third one
Step-by-step explanation:
Answer:
15.C
16.H
Step-by-step explanation:
15.
(3×10^8)/(3.4×10²)=(300×10^6)/(34×10)=9×10^5
16.
y²=64
y²-64=0
(y-8)(y+8)=0
y=8 or -8