Answer:
A=1/2 Bh
6cm^2=1/2.3cm.h
12cm^2=3cmh
H=4cm
Find the two numbers. Algebra -> Customizable Word Problem Solvers -> Numbers -> SOLUTION: The difference of two positive numbers is 8. The larger is twice the smaller decreased by 7.
Answer: d = 11/2 or 5 1/2
Step-by-step explanation:
2d - 6 = 5
+ 6 + 6
2d = 11
/2 /2
d = 11/2 or 5 1/2
I can only do 1 but I hope it helps.
true
-3ab+4ac-2ad=-3ab + 4ac-2ad
-3ab+3ab +4ac-4ac-2ad+2ad=0
0=0.
so,it is true
