Answer:
x = -3/14
Step-by-step explanation:
1/2(2x-1) = -1/7 -4/7
Combine like terms
1/2(2x-1) = -5/7
Multiply each side by 2
2*1/2(2x-1) = -5/7*2
2x-1 = -10/7
Add 1 to each side
2x-1+1 = -10/7 +1
2x = -10/7 +7/7
2x = -3/7
Divide by 2
2x/2 = -3/7 *1/2
x = -3/14
Answer:
its 40
Step-by-step explanation:
180-100=80
80/2= 40
Vertical angles have the same degree
Make both angles equal
5x - 10 = 60
Solve the equation
5x = 70, x = 14
Solution: A
Answer:
The figure above is congruent by SSS axiom.
AB=DE (S)
AC=EF(S)
BC=DF(S)
Hence the given triangle are congrent.SSS axiom is Side.Side.Side axiom.
I think it will help you.
Answer:
7.8 feet
Step-by-step explanation:
The shadow, the ground and the distance between the top of the tree and end of the shadow form 2 right-angled triangles which are similar.
So corresponding sides are in the same ratio. Therefore:-
40 / 12 = 26/x where x is the length of shadow cast by the smaller tree.
40x = 12*26
x = (12*26) / 40
= 7.8 feet
