3 years ago

Another day for brainliests if u answer my questions right :D

Mathematics

2 answers:

Mumz [18]3 years ago

6 0

Because they will give you the same answers lol

Alexandra [31]3 years ago

3 0

You use keep, change, change so you’ll get -15+6.

You will get the answer -9 for that one. The second one is 15-6 which equals 9.

They are similar because for both of them, you are taking 6 away from 15. The only thing that is different are the signs.

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All lines are straight or a triangle has four sides.

sveta [45]

This is a disjunction, B, because it has 2 statements with an OR in the middle.

7 0

4 years ago

Read 2 more answers

Can you help me with this question?

Rufina [12.5K]

Answer:

16.2

Step-by-step explanation:

The angle internal to the triangle at B is the supplement of the one shown, so is 65°. That is equal to the angle internal to the triangle at D. Since the vertical angles at C are congruent, the two triangles are similar by the AA theorem.

Corresponding sides of similar triangles are proportional, so we can write the proportion shown in the attachment:

BC/FC = DC/AC

BC = FC(DC/AC) = 21.6(7.2/9.6)

BC = 16.2 . . . . matches the first choice